Innovative Lighting Round 2.5" LED Marker/Clearance Light Amber Operates 9-16 Volt DC Systems Single and Multi-LED Configuration 100,000 Hours of Service Life Fits Truck & Trailer Shock and Vibration Proof (211-1100-1)

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At a Glance

>Includes four complete 21-88 oil cap service kits
>3.50" oil caps for 10K GD axles (post-2009)
>Includes matched O-rings and center plugs
>Ideal for fleet service, tandem/quad axle setups, or shop inventory
Brand: R & P Carriages
SKU: 211-1100-1

Before You Order

Match the part number, measurements and connection points that apply to your trailer.

Fitment Check

Part Number	Match the number stamped on the original bearing or seal.
Dimensions	Measure the mating surfaces when a number is unavailable.
Hub / Axle	Use capacity as context, not as the only fitment check.

Product Details

(4 Pack) 21-88 Oil Bath Cap Kit with Plug and O-Ring – 3.5" Cap for 10K GD Axles

Part Number: 21-88-KIT-LOTOF4

Four complete oil cap service kits including caps, sealing O-rings, and center plugs for 21-88 oil bath applications. Designed for 10K general duty axles manufactured after 2009.

R&P Knowledge Hub

Oil bath systems rely on proper sealing to retain lubricant and protect bearings. Replacing caps, plugs, and O-rings together ensures consistent sealing and prevents leaks.

Features

Includes four complete 21-88 oil cap service kits
3.50" oil caps for 10K GD axles (post-2009)
Includes matched O-rings and center plugs
Ideal for fleet service, tandem/quad axle setups, or shop inventory

Specifications

Part Number	21-88-KIT-LOTOF4
Cap Size	3.50" OD
Application	21-88 Oil Cap Systems
Axle Rating	10K GD (Post 2009)
Material	Standard Oil Bath Components

Included Components

Part Number	Quantity	Description
21-88	4	Oil Bath Cap (3.50")
010-163-00	4	O-Ring for 21-88 Cap
046-032-00	4	Center Oil Plug

View More 21-88 Oil Cap Options