NY607041L - Lock Nut – 7/16" UNF

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Lock Nut - 7/16" UNF - self-locking nut providing a prevailing-torque fastening.

The nut resists loosening under vibration and dynamic load, securing suspension and steering fixing points. 7/16" UNF thread.

Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 1 1989-1998 (L318)
Land Rover Freelander 1 1996-2006 (L314)
Range Rover Classic up to 1994
Land Rover Series 2 and 3

Fitment Notes Generic 7/16" UNF self-locking (lock) nut — multiple applications:
SERIES II/IIA/III — front suspension top bolt nut; front door and components; front shock absorber & springs; rear shock absorber & spring (109 except 1 Ton)
DEFENDER 1987-2006 — steering box (Adwest & Gemmer, manual non-PAS and power steering)
DISCOVERY 1 1989-1998 — frame assembly; rear safety harness anchorage; power steering box
FREELANDER 1 1996-2006 — rear split seat (LHD and CDN/MEX/USA variants)
RANGE ROVER CLASSIC 1986-1991 (to VIN HA610293) — tunnel assembly; rear seat belt anchorage; power steering box
RANGE ROVER CLASSIC 1992-1994 (from VIN JA610294) — tunnel assembly; rear safety harness anchorage; power steering box
JAGUAR — XJ6/XJ12 (XJ40), XJ 1995-1997 (X300), Daimler Limousine, Series III Saloon — wishbones, anti-roll bar, road spring & damper, tie rod/steering box

Alternative Codes

NY607041L252163257407BR 1179GHF224T-0965

In stock 525 units

338 · Gouda 187 · Drachten

Express delivery available

When will my order arrive?

Order before 15:00 (Mon–Fri): same-day dispatch for in-stock items.
UPS Express (order before 14:00): dispatched today, delivered tomorrow where available.
Netherlands / Belgium / Germany: 2–4 working days.
Other EU countries + UK: 4–8 working days.
Outside EU/UK: delivery times vary — contact us for an estimate.

Items may ship from multiple warehouses at no extra cost.

Job kits containing this part

This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What is the NY607041L lock nut and where is it used on a Land Rover Series vehicle?

The NY607041L is a 7/16" UNF prevailing-torque lock nut for the front suspension top bolt on Land Rover Series II and III. It also fits a range of Jaguar applications including XJ6/XJ12 (XJ40), XJ 1995-1997 (X300), Daimler Limousine, and Series III Saloon, covering wishbones, anti-roll bar, road spring and damper joints.

Can this lock nut be reused after removal?

No. Lock nuts with a prevailing-torque feature lose their locking effectiveness once removed. The resistance that stops the nut vibrating loose permanently changes on first use. Always fit a new lock nut when reassembling suspension or steering joints.

What's the difference between this 7/16" UNF nut and metric equivalents used on later Land Rovers?

The 7/16" UNF thread on NY607041L is an Imperial specification used on Series II/III and early Defender suspension. Later Defender and Discovery models transitioned to metric threads. Mixing metric and UNF fasteners is dangerous and won't torque correctly, so always verify the thread type before ordering replacements.