Steering Lock Assembly 8-97170364-0 For Isuzu NQR75 4HK1 4JJ1 6HK1 Truck 8971703640

Function (within 200 characters):
A complete steering column lock assembly that secures the steering wheel when the key is removed, preventing unauthorized vehicle movement. Integrates the ignition switch and mechanical lock mechanism in a single, ready-to-install unit.

Product Description (Detailed):
The Steering Lock Assembly (OEM Numbers: 8-97170364-0 / 8971703640) is a complete, ready-to-install column lock and ignition switch unit. It is engineered specifically for ISUZU NQR75 series medium-duty trucks, as well as compatible NPR, FRR, and GIGA C/E series chassis, powered by the 4HK1, 4JJ1, 6HK1, 4JA1 and 4JK1 engine families. This assembly is a safety and anti-theft component that physically locks the steering column when the ignition key is removed, preventing the steering wheel from being turned. It also contains the ignition switch, which controls the vehicle’s electrical circuits and starter motor.

The assembly is supplied as a complete, pre-assembled unit including the lock housing, ignition switch, wiring harness connector, and shear bolts. It is delivered without the lock cylinder, which must be transferred from the original steering lock using the existing key (matching the door locks). All new mounting shear bolts are included. The shear bolts are specially designed to snap at a predetermined torque, and once installed they cannot be removed without drilling, providing tamper-proof security. This assembly replaces faulty or damaged units where the lock mechanism has seized, the ignition switch has failed, or the housing has cracked. It is also used when keys are lost and the original lock cylinder cannot be re-keyed.

A failing steering lock assembly will manifest as a key that will not turn, or a key that turns but will not crank the starter, or a key that can be removed while the engine is running. You may also experience a steering wheel that will not lock when the key is removed, the key cannot be inserted, or the lock emits grinding noises. If the lock seizes while the engine is running, the vehicle could be rendered undrivable without warning. Whether you are addressing a key jamming in the lock, a broken ignition switch, or replacing a unit with a lost key, this OE-quality steering lock assembly is the direct-fit solution to restore reliable steering locking and ignition switching.

Part Number:	8-97170364-0 8971703640	Product Name:	Steering Lock Assembly
Car Model:	Isuzu NQR75	Engine Model:	Isuzu 4HK1 4JJ1 6HK1
Condition:	100% Brand New	Size:	Standard
Weight:	Standard	Origin:	China Mainland
Main Market:	Middle East ,Asia,Africa, South America, North America &Europe	Package:	Neutral Packing Or Make It As Requested
Material:	High-strength aluminum alloy & precision bearings	Cooling Type:	Engine coolant circulation
Installation:	Direct OEM replacement	Quality Standard:	OEM equivalent / ISO quality control

• OE Quality: Manufactured to strict Isuzu OEM dimensional, electrical, and mechanical standards for a perfect, direct‑fit replacement – no modifications, adapters, or custom wiring required. All components are designed to match the original factory installation on NQR75 and D‑MAX platforms.

• Complete Assembly: This unit is supplied pre‑assembled, including the ignition switch, wiring harness tail, and two new shear bolts ready for installation. You only need to transfer your existing lock cylinder from the old unit, keeping your original key for all locks.

• Tamper‑Proof Mounting: The included shear bolts (breakaway bolts) have a special head that breaks off at a precise torque. Once installed, they cannot be removed without drilling, securing the assembly against theft and unauthorised removal. Always use new shear bolts – never reuse old ones.

• All‑in‑One Design: Replaces both the mechanical lock module and the electrical ignition switch in a single operation. No need to purchase separate components – this one assembly does both jobs.

• Proven Compatibility: Interchangeable with OE numbers 8-97088277-0, 8970882770, 8-97170877-0, and 8971708770. This cross‑reference simplifies inventory management for workshops and distributors.

• Restores Key & Lock Operation: Directly fixes common complaints such as key jamming, key won’t turn, key can be removed while driving, and steering wheel not locking – restores factory‑spec security and operability.

• Prevents Electrical Failure: Replaces a corroded or burnt‑out ignition switch, eliminating intermittent starting issues, complete electrical failure, or the engine not cranking.

• High‑Security Shear Bolts: The kit includes brand‑new mounting bolts designed to break at a predetermined torque, preventing the steering lock from being removed without visible damage – a standard security feature on commercial vehicles.

• Direct Replacement: Simple installation using basic hand tools – the only specialist knowledge required is the safe transfer of the lock cylinder and the correct drilling procedure if a seized lock cylinder cannot be turned to the ACC position.

• ISO 9001:2015 / IATF 16949 Certified: The manufacturing facility meets international automotive quality management standards, ensuring consistent, traceable, and reliable output for wholesale commercial fleets.

• Long Service Life: Designed for hundreds of thousands of kilometres of heavy‑duty commercial operation – urban delivery, construction, long‑haul transport, and off‑highway use.

This steering lock assembly is a direct OE replacement for a broad range of Isuzu medium‑duty and heavy‑duty trucks as well as D‑MAX pickups, particularly those equipped with 4‑cylinder and 6‑cylinder common-rail diesel engines. Please verify fitment using your specific chassis number, VIN, or original part number before ordering.

ISUZU N‑Series / ELF Medium-Duty Trucks (Primary Fitment):

ISUZU F‑Series / C‑Series (Heavy‑Duty):

ISUZU D‑MAX Pickups (Cross‑Compatible):

• Material Verification: Die‑cast housing alloy, lock bolt steel, electrical contact materials, and flame‑retardant plastics tested to meet JIS / SAE durability, ignition, and safety standards.

• Dimensional Accuracy: Mounting flange bolt hole spacing, column diameter fitment, and lock cylinder bore geometry verified against OE blueprints using CMM equipment.

• Switch Contact Testing: The ignition switch is cycled 20,000+ times on a test rig (simulating a full service life) to ensure electrical continuity and contact resistance remain within specification. No intermittent open circuits or high contact resistance are tolerated.

• Mechanical Lock Test: The locking bolt is tested for positive engagement, return force, and resistance to tampering – verified to withstand 200 N·m of steering wheel torque in the locked position.

• Shear Bolt Integrity: The supplied shear bolts are torque‑tested to break at the manufacturer’s specified limit (typically 6‑10 N·m for the breaking head). The remaining thread section is verified to provide adequate clamping force without loosening.

• ISO 9001:2015 / IATF 16949 Certified: Facility meets international automotive quality management standards, ensuring consistent, traceable, and reliable output for wholesale commercial fleets.

• Visual Inspection: 100% inspected for housing cracks, casting porosity, switch terminal damage, and lock cylinder bore alignment.

• Packaged Safely: Sealed in an anti‑static / moisture‑barrier VCI bag and boxed with OE‑style part labeling to prevent corrosion, ESD damage, and transit abrasion during long‑term storage and international shipping.

• Individual Packaging: Each steering lock assembly is sealed in an anti‑static / moisture‑barrier VCI bag and boxed with OE‑style part labeling. Two new shear bolts are included.

• Wholesale / Bulk Orders: Available for heavy‑truck parts distributors, automotive locksmiths, workshop chains, fleet operators, and international exporters – sold in case packs (5, 10, 20, 50 units); pallet pricing available for volume orders.

• Customization: Neutral or private‑label retail packaging (including custom barcode labels) is available for volume wholesale orders (minimum order quantity applies). Discuss your branding requirements with our sales team.

• Fast Shipping: Ready stock for immediate dispatch worldwide via express courier (DHL, FedEx, UPS) for urgent repairs, or economical sea freight from central logistics hubs (Guangzhou, Singapore, Rotterdam, Los Angeles).

• Wholesale Support: Long‑term supply agreements, tiered commercial pricing, and drop‑shipping options available for approved distributors. Contact our Isuzu parts department to set up a wholesale account today.

For pricing, availability, or bulk purchase of the ISUZU Steering Lock Assembly 8-97170364-0 (8971703640) for NQR75, NPR, 4HK1, 4JJ1, 6HK1, and D‑MAX applications, please contact our sales team for a competitive wholesale quote and expert technical support. We respond to all inquiries within 24 hours.