KYB
KYB Coil Spring Shim
KYB Coil Spring Shim
Part number: 03NKJ
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- Ships direct from the brand or supplier
- Tracking emailed when it ships
- Free fitment check before you order
Coil Spring Shim from KYB. Springs hold the car up and set its ride height. The fitment section lists 11 applications.
Key features
- No Core Charge Required
Specifications
- Brand: KYB
- Part type: Spring set
- Parts Interchange: SM5560, SM 5560, 38538002420, 385 38002 420
Fitment
- 2003 - 2008 INFINITI G35 Base
- 2007 - 2008 INFINITI G35 Journey, Sport
- 2004 - 2008 INFINITI G35 X
- 2008 INFINITI G35 X Sport
- 2005 Nissan 350Z 35th Anniversary Edition
- 2003 - 2008 Nissan 350Z Base
- 2005 - 2009 Nissan 350Z Grand Touring
- 2007 - 2008 Nissan 350Z Nismo
- 2003 - 2005 Nissan 350Z Performance
- 2003 - 2009 Nissan 350Z Touring, Enthusiast
- 2003 - 2006 Nissan 350Z Track
What it does
Sagging or broken springs make the car sit low and ride poorly. Worn suspension and steering parts show up as clunks, wandering, uneven tire wear and a vague feel; fresh parts restore control, and performance parts sharpen it.
Installation & tips
- Use shocks in good condition with new springs and get an alignment after.
- Shocks: Springs work best with healthy dampers.
- Alignment: Ride height changes alignment.
- This part affects how the vehicle stops, steers or holds the road. If you are not sure how to fit it, have it installed or checked by a qualified mechanic.
FAQ
How many vehicles is it listed for?
11 applications are listed in the fitment section above.
Can I install it myself?
Many owners do this job at home with the right tools and a service manual, but because it is a safety-related part, have the work checked by a qualified mechanic if you are not sure.
What should I check before ordering?
Compare the part number, specifications and fitment on this page with your vehicle and with the part you are replacing.
Before you order
- Measure the part you are replacing and compare it with the specifications above.
- Plan for a wheel alignment after fitting if the job changes the suspension or steering geometry.

About this spring set
Sagging or broken springs make the car sit low and ride poorly.
Fitment notes
- Specs, lead time and warranty come from KYB and can change. The details above this guide are the latest we have.
Not sure it fits? Send us your year, make, model, engine and trim and we'll check before you order.
Ask about fitmentParts that usually go with it
More for your car: POPULAR PRODUCTS · Suspension & steering
Questions about springs
Will this fit my car?
Do I need new shocks?
Where do specs and warranty details come from?
Questions & answers
No questions yet about this part. Ask about fitment, what's in the box or installation and we'll answer here.