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King Pin Kits

King pin kits with pins, bronze or needle bushings, thrust bearings, shims, seals and cotter pins for Japanese light, medium and heavy truck front axles.

Products

20 products

About king pin kits

King pins connect the steering knuckles to the front beam axle on most trucks and many older 4x4s and light commercial vehicles. They carry the vehicle's front axle load while allowing the wheels to steer. Worn king pins and bushings cause steering wander, shimmy, uneven tire wear and poor braking stability.

Typical kit contents

  • King pins – hardened steel pins, sometimes chrome-plated, with grooves or flats for draw keys or lock bolts.
  • Bushings – bronze bushes, steel-backed composite bushes, or needle roller bearings on some axles.
  • Thrust bearings – tapered roller or ball thrust bearings, or thrust washers, carrying vertical load between knuckle and axle.
  • Shims – to set vertical clearance.
  • Seals and O-rings – to retain grease and exclude dirt.
  • Draw keys, cotter pins or lock bolts, caps and gaskets.
  • Grease nipples for regular lubrication.

Kit contents vary by supplier, so each component must be confirmed.

Installation considerations

Bronze bushings are often pressed into the knuckle and then reamed or honed to final size, which requires tooling and skill. Some kits supply pre-sized bushes that do not require reaming. Correct thrust bearing orientation, shim selection and greasing after installation are essential.

Failure drivers

Irregular greasing, overloading, dust and water from unpaved roads, and worn thrust bearings. Fleets that grease king pins at every service see much longer life.

Applications

King pin kits are specific to the front axle model on trucks such as the Hino 500 and Isuzu NPR. The same chassis may use different axles depending on GVW. Related parts: tie rod ends.

Buying & specification guide

  • Chassis model, axle model and OEM kit number, plus axle markings where available.
  • Pin dimensions: diameter and length, groove or flat positions.
  • Bushing type: bronze requiring reaming, pre-sized bushes, composite or needle bearings.
  • Thrust bearing type: tapered roller, ball or washer.
  • Kit contents list: pins, bushes, bearings, shims, seals, keys, caps and nipples. Kits typically cover both sides of one axle, but confirm.
  • Material quality: pin hardness and surface finish; bushing alloy.
  • Packaging: oiled or VCI-wrapped pins, separated components, labeled bags for small parts.
  • Tooling: consider stocking reamers or offering guidance for bronze bush installation.
  • Fleet demand: order by the axle types most common in the local fleet; heavy use justifies deeper stock.
  • Oversize options: some axles accept oversize king pins after worn knuckle or axle bores are machined. Ask whether oversize kits exist for the main axle references.
  • Related parts: stock tie rod ends, drag link ends and hub seals for the same axles, since king pin jobs often expose other front-end wear.

Export supply

King Pin Kits can be quoted on FOB, CFR, CIF, FCA or EXW terms and combined with other product groups in a single consolidated container. Send part numbers, quantities and destination port for a validated quotation.

Export processMixed container ordersShipping & logistics

Frequently asked questions

Do king pin kits cover both sides of the axle?

Most kits cover one complete axle, both sides, but some are sold per side. Confirm the kit contents and quantity before ordering.

Do bronze king pin bushings need reaming?

Many bronze bushings must be reamed or honed after pressing to achieve correct clearance. Some kits use pre-sized bushings that do not require reaming. Check the kit specification.

How often should king pins be greased?

Follow the manufacturer's schedule, and more often in dusty or wet conditions. Regular greasing is the single most effective way to extend king pin life.