Description
RA4021 – FRUEHAUF HUB CAP O-RING
PART NUMBER(S):
Fleet Products: RA4021 (New) | Replaces OE: Automann 180.10618.1, 180106181, A982 | Euclid E05500, E-05500 | Meritor R005500 | Spicer 8296 | Fruehauf AXA04841, AXA000484001 | SAF Holland AXA04321, AXA04841 | BWP M1065 | Dayton Parts Batco 110680 | Dana 8296 | Navistar IT8296 | Nuturn - CAN L1700 | Provincial Whse -CAN M1065 | Eagle/Norcross A982 | Great Lakes GL9014 | HDA 9015P | Sirco Brake 9014 | Stemco 5500 | Trailmobile 3805500, 70086
DESCRIPTION:
Model: Fruehauf Hub Cap O-Ring
Vehicles: Fruehauf Pro-Par trailers, GMC, Mack, Wabash, and other heavy-duty hubs using threaded hub caps (RA4020)
• Type: hub cap O-ring seal
• Bolt Circle: 5.5" (6-hole hub caps)
• Fitment: 6.25" threaded / screw-in hub caps
• Material: high-grade elastomer
• Function: leak-proof hub cap seal
• Application: oil or grease hub systems
Applications:
Designed as the OEM-style sealing O-ring for Fruehauf spin-on hub caps and compatible Automann and Stemco hub cap assemblies. Ensures a reliable seal for threaded hub caps in trailer and truck axle applications, preventing leaks and extending wheel-end service life.
CROSS-REFERENCE(S):
RA4021, 180.10618.1, 180106181, 180.10618.1P, 18003006, 18005006, 180.CR453795-8, E-05500, E05500, EUE05500, 05500, R005500, R005500RI, 8235-R005500, 8235R005500, ATIR005500, TDA R005500, TDAR005500, Meritor R005500, Euclid E05500, AXA04841, AXA04321, AXA 000484 001, Fruehauf AXA04841, Spicer 8296, 8-296, GT4021, GL9014, GL-4974, L-1700, L1700, U51L1700, M-1065, M1065, BWPM1065, NAT357, NAT-357, WA145001, 11-0680, 203-3077, 2033077, MNC203-3077, 3099695, 3096286, 401551, 401265, 61077G, 7843-3303077, 719021, 9014, SIR9014, TP1549, STE3303077, STE330-3077, ST330-3077, SM-330-3077, STM3303077, ZCP3303077, SBR330-3077, TWD3303077, 3303077, 3303077-ST, PA10231, J27954, 130759, ROS18005006, G473, 110621, 357PKG
A cross-reference listing means this part is a suitable replacement for the part numbers listed. Always confirm hub cap model and gasket size before installing.
IMPORTANT INSTALLATION NOTES:
✔ Confirm O-ring matches hub cap model (RA4020 or 180.10618) before use.
✔ Always install with clean, lubricated surface for proper sealing.
✔ Do not over-tighten hub cap when O-ring is seated to prevent deformation.
✔ Inspect for cuts, cracks, or flattening during routine hub service.
✔ Replace O-ring whenever the hub cap is removed to maintain optimal sealing.
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Warranty Information
