Steering rack boot guide

Steering Rack Boot Selection Guide: OEM Number, Size and Material

Technical sourcing notes for aftermarket distributors and steering-rack rebuilders.

A steering rack boot protects the rack and inner joint from water, dust and road debris. A boot that looks similar may still be unsuitable if its mounting diameters, length or material do not match the rack application.

Related steering rack boot products

KSB-01 steering rack boot 15*49*188
KSB-01

Steering Rack Boot

OEM BJS7-32-12X

15 × 49 × 188

View product
KSB-02 steering rack boot 15*49*156
KSB-02

Steering Rack Boot

OEM 45535-49025

15 × 49 × 156

View product
KSB-03 steering rack boot 13*49*166
KSB-03

Steering Rack Boot

OEM 45535-05020

13 × 49 × 166

View product

1. Use the OEM reference as the first filter

An OEM number is the fastest route to an initial match. It should still be checked against the vehicle application and physical sample because catalog numbers can have market, production-year or steering-system variations.

2. Measure both ends and the working length

Provide the small-end diameter, large-end diameter and free length. Include the original boot shape and whether the part uses a clamp, wire ring or a molded retention feature. Photos next to a ruler are especially useful when a drawing is unavailable.

3. Check material and operating environment

Boot material must remain flexible while resisting road splash, oil exposure and repeated steering movement. The supplier should confirm the requested material against the application rather than assume that every rack uses the same compound.

4. Build a quotation-ready request

  • OEM reference and vehicle application
  • Small-end diameter, large-end diameter and length
  • Sample photos or a physical sample
  • Requested material and packaging requirements
  • MOQ and delivery destination

Clear input reduces the risk of selecting a boot that fits one end but fails to seal or travel correctly. Review Steering Rack Boots or send KOKI your reference and dimensions.

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