{"title":"Hub Caps \u0026 Gaskets","description":null,"products":[{"product_id":"vent-plug-3-4-hub-cap-sma-zst3595915","title":"VENT PLUG 3\/4 HUB CAP SMA - ZST3595915","description":"The Stemco 359-5915 Red Vent Plug is a high-quality axle hub cap component designed to assist with proper wheel end ventilation and contamination control in heavy-duty transport applications. Manufactured using durable materials and engineered for reliable long-term performance, it helps maintain hub integrity and extend wheel end service life. Designed to suit Stemco hub cap systems, it provides dependable fitment for trailer and tractor wheel end applications. Built to meet demanding fleet performance requirements, it delivers durability and reliability in commercial transport environments.","brand":"STEMCO","offers":[{"title":"Default Title","offer_id":48902938886395,"sku":"ZST3595915","price":11.87,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/6030\/4123\/files\/40670.jpg?v=1779974698"},{"product_id":"gasket-hub-cap-zst3303024","title":"GASKET HUB CAP - ZST3303024","description":"The Stemco Gasket Hub Cap 3303024 is a 6-hole hub cap gasket that provides a secure seal between the hub cap and the wheel hub to help contain lubricant and keep out contaminants. Manufactured from specialised gasket material and high-grade, low-density sealing compounds, it conforms closely to the hub surface for a tight, reliable fit. This gasket features a 4-1\/2 inch bolt circle, 5\/16 inch bolt size, approximately 5-1\/8 to 5-1\/4 inch outside diameter and 3-1\/2 inch inside diameter, and is finished in black. With six mounting holes, it suits a wide range of steer axle and trailer hub caps that share these dimensions and patterns. Meeting or exceeding OEM specifications and relevant ASTM requirements, it supports long service life and consistent wheel-end performance. Used as part of routine wheel-end maintenance, this gasket helps protect bearings, seals and hub caps in heavy-duty truck and trailer applications.","brand":"STEMCO","offers":[{"title":"Default Title","offer_id":49056932233467,"sku":"ZST3303024","price":3.22,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/6030\/4123\/files\/24984.png?v=1783510299"},{"product_id":"hub-cap-popular-6-hole-gp-zst3434009","title":"HUB CAP POPULAR 6 HOLE - GP - ZST3434009","description":"The Stemco Hubcap Popular 6 Hole - Gp is a heavy-duty grease and oil hub cap that protects wheel ends from dust, debris and oil loss in demanding transport applications. Built from cast aluminium, it combines strength with effective heat dissipation, helping maintain hub performance under continuous service. This 6-hole, bolt-on hub cap suits common trailer and axle hub patterns with a 5.50 inch bolt circle, 6.00 inch flange outer diameter and 4.00 inch flange inner diameter. Overall depth is 2.00 inches with an inside depth of 1.00 inch, providing ample clearance for hub components. The clear window and large red fill and side fill plugs allow straightforward oil level checks and servicing. A vented design supports consistent operating temperatures, while the included gasket (part number 330-3009) works with the cast body to support leak-resistant sealing. This hub cap is used on axle hub assemblies where reliable sealing, easy inspection and robust aluminium construction are required.","brand":"STEMCO","offers":[{"title":"Default Title","offer_id":49057058881787,"sku":"ZST3434009","price":48.78,"currency_code":"AUD","in_stock":true}]},{"product_id":"hub-seal-d22-k22-zst3070713","title":"HUB SEAL D22 - K22 - ZST3070713","description":"The Stemco Hub Seal D22 - K22 is a Guardian HP trailer axle wheel seal engineered to retain lubricant and protect 19,000 lb trailer hubs from contamination. Built around a 4.00 in shaft diameter and 5.75 in housing bore, this seal provides a precise fit for trailer axles using inner bearing cup\/cone 653\/663 and outer bearing cup\/cone 553X\/560 or HM212011\/HM212049. The seal features an approximate width of 0.60 in, supporting correct hub set-up and consistent clamping of the bearing set. It is installed using Stemco tools 555-0001 handle\/body and 555-5100 axle tool head to ensure accurate, damage-free seating in the hub. Cross-referenced to popular equivalents such as National 370036A and 380036A and SKF 40136, it integrates easily into existing fleet maintenance programs. This Guardian HP seal is suited to oil bath wheel hub applications on heavy-duty trailer axles where reliable sealing performance and long service life are required.","brand":"STEMCO","offers":[{"title":"Default Title","offer_id":49057062519035,"sku":"ZST3070713","price":148.52,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/6030\/4123\/files\/39991.jpg?v=1783512110"},{"product_id":"kit-hubodometer-window-zst3596117","title":"KIT HUBODOMETER WINDOW - ZST3596117","description":"The Stemco Kit Hubodometer Window 3596117 is a hub cap window kit used on heavy-duty truck wheel ends to support hubodometers and lubricant level monitoring. The kit is specified as a 3-1\/2 inch hub or Hubo window kit and is supplied as a component for axle hub caps. It features a clear polycarbonate window that allows visual inspection of oil or grease levels in oil bath hub caps, helping maintenance staff confirm correct lubrication without removing the cap. Several listings reference the kit as an axle hub cap window component with compact dimensions around 5.25 inches square and 2 inches high, keeping the assembly low profile on the wheel. The product is manufactured in the United States and is supported by Stemco�s commercial vehicle wheel-end engineering. This window kit is suited to heavy-duty truck applications where reliable lubricant monitoring and hubodometer visibility are required to support regular inspections and fleet maintenance schedules.","brand":"STEMCO","offers":[{"title":"Default Title","offer_id":49057064386811,"sku":"ZST3596117","price":52.91,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/6030\/4123\/files\/40672.jpg?v=1783512731"},{"product_id":"kit-hub-cap-window-3-1-2-zst3595995","title":"KIT HUB CAP WINDOW 3-1\/2 - ZST3595995","description":"The Stemco Kit Hub Cap Window 3-1\/2 is a 3-1\/2 inch axle hub cap window kit that allows clear visual inspection of hub oil levels and internal bearing conditions without removing the hub cap. This universal window kit is engineered for heavy-duty truck and trailer hub caps and is supplied as a complete service kit, including the transparent window, gasket, window ring gasket and vent plug. The clear window construction provides reliable visibility of lubricant level and condition, while the included gaskets help control seepage and oil spray and assist in preventing water and contaminant ingress into the hub assembly. The vent plug is included to help regulate internal axle pressure during operation. Built from durable, corrosion-resistant materials, the kit is suited to demanding commercial vehicle wheel-end environments and supports routine fleet maintenance and hub rebuild work. This part cross-references a wide range of OEM and aftermarket hub cap numbers, making it suitable for use across many standard drive and trailer axle hub cap applications where a 3-1\/2 inch Stemco-style window is required.","brand":"STEMCO","offers":[{"title":"Default Title","offer_id":49057069039867,"sku":"ZST3595995","price":24.57,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/6030\/4123\/files\/26127.jpg?v=1783513144"},{"product_id":"hub-seal-guardian-fruehalf-tool-fit-zst307-0723","title":"HUB SEAL GUARDIAN - FRUEHALF - TOOL FIT - ZST307-0723","description":"The Stemco Hub Seal Guardian - Fruehalf - Tool Fit is a Guardian HP wheel hub oil seal engineered for heavy-duty trailer axle applications. Designed for Pro-Par trailer axles and compatible with Fruehauf, Eaton P-22, Meritor TP and Dana, it provides a reliable barrier that helps keep lubricant in and contaminants out of the wheel end. The seal features a bore diameter of 6.008 in, a shoulder outer diameter of 4.25 in and a width of approximately 0.563 in, matching HM518410\/HM518445 inner and outer bearing cup and cone sets. Its E7 Guardian HP design incorporates a high-temperature sealing lip and HNBR-PTFE seal lip material, with a rubber outer diameter to support hub cleanliness and corrosion resistance. Installed directly on the axle using the Stemco universal axle tool handle 555-0001 and axle tool head 555-5023, the semi-unitised construction promotes positive alignment and helps reduce installation-related damage. This hub seal suits oil, semi-fluid and grease lubricants in trailer wheel ends where long service life and consistent sealing performance are required.","brand":"STEMCO","offers":[{"title":"Default Title","offer_id":49057069138171,"sku":"ZST307-0723","price":90.65,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/6030\/4123\/files\/45142.jpg?v=1783513151"},{"product_id":"window-kit-4-3-8-hub-cap-zst3595912","title":"WINDOW KIT 4-3\/8 HUB CAP - ZST3595912","description":"The Stemco Window Kit 4-3\/8 Hub Cap is a heavy-duty wheel hub cap window kit that enables quick visual inspection of wheel bearings and hub oil levels without removing the hub cap. This 4 3\/8 inch kit features a clear tempered glass window with an outside diameter of approximately 4.37 inches and a window height of 0.75 inches, providing a durable viewing surface suited to harsh operating environments. The kit includes the window, gasket, window ring gasket and a 3\/4 inch red vent plug, supplying all key sealing components in one package. Constructed from high-quality materials, the window and gaskets work together to help keep dirt and debris out of the hub while maintaining a reliable seal. Suitable for standard wheel hub caps on heavy-duty vehicles, this kit supports routine wheel-end maintenance by allowing regular checks of bearing and lubricant condition with minimal downtime.","brand":"STEMCO","offers":[{"title":"Default Title","offer_id":49057069760763,"sku":"ZST3595912","price":30.03,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/6030\/4123\/files\/40184.jpg?v=1783513191"},{"product_id":"plug-hub-cap-red-rubber-1-zst3595990","title":"PLUG HUB CAP RED RUBBER 1 - ZST3595990","description":"The Stemco Plug Hub Cap Red Rubber 1 is a vented rubber plug used to seal and protect wheel hub caps while allowing controlled ventilation. This red rubber plug suits hub caps with a 1-1\/8 inch hole and is manufactured to meet or exceed OEM specifications for function, form, and fit. Constructed from durable rubber, it resists oils, chemicals, water and long-term weather exposure, helping to keep contaminants away from the wheel end. The plug incorporates a vent feature that releases internal pressure from the hub cap, supporting reliable operation of oil hub caps and heavy-duty wheel end systems. Identified by part number 359-5990 \/ 3595990, it is widely referenced across multiple heavy vehicle manufacturers and parts catalogues as a direct hub cap plug component. Used on Stemco hubs and compatible oil hub caps with a removable plug, this component supports routine wheel end maintenance on trucks and trailers by maintaining an effective seal around the hub cap opening.","brand":"STEMCO","offers":[{"title":"Default Title","offer_id":49057069859067,"sku":"ZST3595990","price":4.01,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/6030\/4123\/files\/40671.jpg?v=1783513188"},{"product_id":"hub-cap-gasket-multi-hole-heavy-duty-zst330-3067","title":"HUB CAP GASKET - MULTI HOLE HEAVY DUTY - ZST330-3067","description":"The Stemco Hub Cap Gasket - Multi Hole Heavy Duty is a robust wheel-end sealing solution for commercial and trailer axle applications using 5-1\/2 inch bolt circles. This heavy duty gasket suits hub caps with both 5 and 6 mounting holes, providing a reliable seal to help prevent debris penetration and lubricant escape in demanding service. Manufactured from high-grade gasket material, it is engineered to handle minor spindle imperfections and promote positive spindle seating, supporting long service life in fleet and heavy transport environments. The gasket features a 5-1\/2 inch bolt circle and 5\/16 inch mounting bolt holes, with a multi-hole layout that offers flexible fitment across compatible hub cap designs. Its construction is intended for use on wheel-end and trailer axle hub caps where consistent sealing performance is required. This part is supplied individually, making it suitable for both single-axle repairs and larger maintenance programs where specific hub cap gaskets are being replaced.","brand":"STEMCO","offers":[{"title":"Default Title","offer_id":49057069957371,"sku":"ZST330-3067","price":3.33,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/6030\/4123\/files\/24988.png?v=1783513205"},{"product_id":"hub-cap-window-kit-2-3-4-zst3595999","title":"HUB CAP WINDOW KIT 2.3\/4 - ZST3595999","description":"The Stemco Window Kit 2.3\/4 is a 2-3\/4 inch axle hub cap window kit that allows inspection of hub internals without removing the hub cap. The kit consists of a transparent window, gasket, window ring gasket and vent plug, supplied as a matched set for service work on compatible Stemco hub caps. The window height is 1.15 inches, giving clear visibility into the hub so bearing condition, lubricant level and oil quantity can be checked during routine inspections. Sealing components are manufactured from rubber to help contain lubricant and resist leakage in heavy-duty road use. The kit is engineered with corrosion-resistant materials suited to commercial truck and trailer environments. It is referenced against multiple Stemco hub cap assemblies and cross-referenced part numbers, supporting use across a range of heavy vehicle wheel-end applications. This replacement kit is installed during hub cap service to restore clear viewing and maintain correct sealing performance around the hub window.","brand":"STEMCO","offers":[{"title":"Default Title","offer_id":49060828610811,"sku":"ZST3595999","price":25.89,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/6030\/4123\/files\/40673.jpg?v=1783663104"},{"product_id":"hub-cap-pcd-4-5-6-bolt-zst3434024","title":"HUB CAP PCD 4.5\"\" 6 BOLT - ZST3434024","description":"The Stemco Hub Cap Pcd 4.5\" 6 Bolt is a bolt-on oil hub cap that protects truck and trailer wheel ends from dust, debris and oil loss. Engineered in cast aluminium, it uses a 6-hole mounting pattern with a 4.50 inch bolt circle and 5\/16 inch (0.31 inch) mounting bolts for secure fitment. The hub cap features a clear window and side pipe plug to allow visual oil level checks and convenient filling, while a built-in vent supports heat dissipation in service. Key dimensions include a flange inner diameter of 3.00 inches, flange outer diameter of 5.00 inches, inside depth of 1.00 inch and overall depth of 2.00 inches. It is supplied with, or specified to use, a 330-3024 gasket and is compatible with window kit 359-5999. With a 6-bolt configuration and robust aluminium construction, this hub cap is suited to heavy-duty steer and trailer axle applications where reliable wheel-end sealing and inspection access are required.","brand":"STEMCO","offers":[{"title":"Default Title","offer_id":49060829888763,"sku":"ZST3434024","price":97.1,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/6030\/4123\/files\/23191.jpg?v=1783663463"},{"product_id":"hub-cap-oil-filled-axle-fg931-acco-zst3434095","title":"HUB CAP OIL FILLED AXLE FG931 ACCO - ZST3434095","description":"The Stemco Hub Cap Oil Filled Axle Fg931 Acco is a 6-bolt cast aluminium oil hub cap designed to protect steer axle wheel ends while allowing easy oil level inspection. Constructed from strong cast aluminium, it resists warpage and offers effective heat dissipation, supporting reliable operation in demanding heavy-duty truck applications. The hub cap features a clear window with advanced glass material that withstands higher temperatures before discolouring or deforming, along with Stemco�s distinct red rubber side pipe plug for convenient oil filling and venting. Key dimensions include an overall height of approximately 1-13\/16 in (1.81 in overall depth), a 5.50 in bolt circle, 5\/16 in (0.31 in) mounting bolt size, 4-9\/16 in (4.56 in) flange inner diameter, and 6-3\/16 in (6.18 in) flange outer diameter. Supplied with a 330-3009 gasket, this hub cap is configured for steer axle use and provides secure, leak-resistant wheel end protection for oil bath hub systems.","brand":"STEMCO","offers":[{"title":"Default Title","offer_id":49060860526843,"sku":"ZST3434095","price":93.92,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/6030\/4123\/files\/38126.png?v=1783663978"}],"url":"https:\/\/www.tranzmile.com\/collections\/hub-caps-gaskets.oembed","provider":"Tranzmile - Truck Trailer \u0026 Parts","version":"1.0","type":"link"}