Suzuki Differential Koyo Pinion Bearing Set - No 18, 19

Koyo Differential Pinion Bearing Set – No. 18 & 19

Description:
This is a high-quality Koyo differential pinion bearing set for Suzuki Jimny and SJ / Samurai models. The set includes both the inner (No. 19) and outer (No. 18) pinion taper roller bearings, supporting the pinion shaft and ensuring correct preload and gear mesh. These bearings fit all years of Jimny and all SJ / Samurai models, and can be used in either the front or rear differential.
Note: This set does not fit SJ410 differentials.

Key Features:

• Premium Koyo bearings – identical to OEM quality.

• Includes inner and outer pinion bearings (No. 18 & 19).

• Fits both front and rear differentials on Jimny and SJ / Samurai.

• Manufactured in Japan for long service life and strength.

• Ensures correct pinion support, preload, and smooth gear operation.

• Ideal for differential rebuilds, ratio changes, and noise repairs.

Fitment:

• Suzuki Jimny (1995–Onwards).

• Suzuki SJ / Samurai – all years (except SJ410).

• Position numbers: 18 & 19 in the Suzuki parts diagram.

• Location: Inner and outer differential pinion bearings.

When to Replace:

• If whining, rumbling, or grinding noises occur from the differential.

• When excessive pinion play or heat is detected.

• During a full differential overhaul or ring & pinion gear replacement.

• If metal debris or bearing wear is found in the diff oil.

What’s Included:

• One Koyo outer pinion bearing (No. 18).

• One Koyo inner pinion bearing (No. 19).

Notes:
Correct installation requires proper pinion preload adjustment using shims or a crush collar. Suitable for all Jimny and SJ / Samurai differentials, front or rear—except SJ410, which uses a different design.