ISUZU NKR55 4JB1 Change Lever Boot 8-97066287-1 OEM Fit

Change Lever Boot 8-97066287-1 / 8970662871 for ISUZU NHR, NKR, NPR and NKR55 series light trucks equipped with the 4JB1 engine and MSB5M / MSB5S manual transmission. This shift lever rubber dust boot is a verified direct-fit replacement that seals the shift lever opening against dust, mud, oil and noise while allowing unrestricted lever movement.

The Change Lever Boot, with OEM numbers 8-97066287-1 and 8970662871, is a verified direct-fit replacement for ISUZU NHR / NKR / NPR / NKR55 series light trucks equipped with the 4JB1 engine and MSB5M / MSB5S manual transmission. The boot is the critical protective element of the gear-shifting mechanism, installed between the base of the shift lever and the transmission control housing or cab floor. It seals the opening through which the shift lever passes, preventing dust, mud, oil and noise from entering the cab while allowing unrestricted shift lever movement.

The change lever boot is a pleated rubber cover fitted over the base of the shift lever. The upper end is secured to the lever, and the lower end is fixed to the transmission control housing or cab floor base. Its pleated structure allows the lever to swing in multiple directions through large angles during gear selection and shifting while maintaining a continuous seal.

The rubber compound must offer oil resistance, ozone resistance, temperature tolerance and fatigue resistance to avoid tearing or hardening under frequent shifting and long-term use. The 4JB1 is a 2.8L inline-four diesel engine, matched with MSB5M / MSB5S five-speed manual transmissions, widely used in ISUZU NKR / NPR series light trucks.

• Visible cracks, tears or holes in the boot — rubber aging or mechanical wear breaks the seal, allowing dust and noise into the cab.
• Hardened or non-elastic boot — aged rubber cannot flex with the lever, potentially restricting shift movement or causing further tearing.
• Increased dust or road noise in the cab — a damaged boot leaves the floor or control opening unsealed, admitting road dust and mechanical noise.
• Oil or muddy water intrusion at the shift lever base — seal failure allows contaminants into the control mechanism area, accelerating wear.
• Boot dislodged from the retaining ring or clamp — loose installation or an aged boot lip results in an incomplete seal.

1. 1Preparation: Remove the shift knob (if required) and the old boot's retaining clamp or trim ring. Clean the lever base and floor / control housing opening area.
2. 2Inspection: Inspect the lever and base for sharp edges, burrs or corrosion. Check the new boot for shipping damage.
3. 3Installation: Align the lower end of the new boot with the floor or base opening, ensuring the pleats are naturally extended without twisting. Install and tighten the lower clamp or retaining ring. Slide the upper end over the lever and install the upper clamp or trim ring.
4. 4Function Check: Cycle through all gears to confirm the boot moves freely with the lever, without over-stretching, pinching or dislodging.
5. 5Trim Reinstallation: Reinstall the shift knob and surrounding interior trim.
6. 6Road Test: Perform a road test to confirm smooth shifting and no abnormal dust or noise in the cab.

• Every 10,000 km or at each service: Inspect the boot for cracks, tears or dislodgement.
• When increased cab dust or shift-area noise is detected: Inspect the boot immediately.
• When servicing the clutch or transmission-related components: Inspect the boot and replace if necessary.

• Standard Packaging: Sealed bag + moisture barrier + neutral box.
• Custom Packaging: Neutral box, color box or customer-branded packaging.
• Suitable For: Truck repair shops, ISUZU parts distributors, fleet maintenance centers.
• Supply Capacity: Stable batch supply with batch-level quality reports available.
• MOQ: Small quantities accepted (quantity discounts available).