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SKU: 4951000

TeraFlex Coil Spring Retainer Kit, Front Lower & Rear Upper - Jeep Wrangler JK 2007-2018

$33.99

180-Day ReturnsOn uninstalled, unused parts Real humans who wheel(920) 249-7744 Financing availableAffirmPayPal CreditFor qualified buyers at checkout Secure checkoutEncrypted payment
Confirmed fit: 2007–2018 Jeep Wrangler
Verified to fit the 2007–2018 Jeep Wrangler.
Warranty Information

Vendor warranty summary

TeraFlex Warranty

At a glance: Lifetime on suspension, steering and armor; 1 year on Falcon shocks and drivetrain; 90 days on finish

This is TeraFlex's warranty, not an NVMOS policy. We've summarized it in plain English to save you a search. The manufacturer's official terms always govern and can change without notice. Last reviewed on nvmos.com: October 4, 2026.

Coverage by product

Product or component Coverage
Suspension (coils, bump stops, control arms, track bars, sway bars/links, IR bushings) Lifetime
9550 shocks and stabilizer Lifetime
Steering and brakes (ball joints, tie rods, drag links, big brake kits, rotors, brake lines) Lifetime
Body armor (skids, racks, Alpha carrier, CB mounts) Lifetime
Wheels and adapters Lifetime
Delta Brake Kit 3 years
Falcon shocks (all series) 1 year
Axle assemblies, housings, knuckles, shafts, conversions 1 year
Alpine control arm and track bar bushings; driveshaft parts; transfer case kits 1 year
Recovery gear (straps, D-rings) 1 year
Paint and powder coat 90 days (defects only)
Wear items (brake pads, rotors) Not covered
  • Original purchaser only — coverage does not transfer if you sell it.
  • Keep your NVMOS order confirmation — proof of purchase is required.

What's covered

  • Defects in materials and workmanship
  • TeraFlex chooses to repair, replace or refund at no charge (except inbound shipping)
  • TeraFlex pays the freight to send the part back to you

What's not covered

  • Improper use, failure to follow instructions, or improper installation/maintenance
  • Modifications or unauthorized repair
  • Normal wear and tear, and finish beyond the 90-day term
  • Racing or competition use
  • Shipping/storage damage and other outside causes
  • Removal labor (customer's responsibility)

How to make a TeraFlex warranty claim

  • Call TeraFlex customer service, Mon-Fri 8am-5pm MST
  • Have proof of purchase or the original invoice ready
  • Remove the part and ship it in at your cost

TeraFlex contact: Phone: (801) 713-3314 · Claim page / support

Bought it from NVMOS? Start with us.

Have your order number and a few photos of the issue ready, then call real humans at (920) 249-7744 or send us a message. We'll tell you whether the claim goes through us or straight to TeraFlex, and help it along either way.

Shop TeraFlex at NVMOS

See all TeraFlex products, lead times and FAQs →

Disclaimer: The information on this page describes TeraFlex's own warranty policy. It is not a warranty offered by NVMOS (No Visible Means of Support LLC). Manufacturers update their terms at any time; we review these pages periodically, but the manufacturer's current official policy is the one that applies to your claim. Source: TeraFlex official warranty information. Last updated on nvmos.com: October 4, 2026. See our return policy for NVMOS's own terms.

About the brand

TeraFlex

TeraFlex has built Jeep suspension since 1996, works out of West Jordan, Utah, and now covers the Ford Bronco, Toyota Tacoma and Super Duty too. NVMOS carries TeraFlex lift kits, Falcon shocks, Alpine control arms, sway bars, ball joints, wheel adapters and Nomad and Olympus wheels. For Jeep and Bronco owners building for the trail.

Based in: West Jordan, Utah · Made in: USA (Utah) · Founded: 1996 (manufacturing) · Lead time: In-stock items ship in 24–48 hours

TeraFlex warranty: Lifetime on suspension, steering and armor; 1 year on Falcon shocks and drivetrain; 90 days on finish. Read the full summary

Warranty terms are set by TeraFlex, not NVMOS, and can change. Bought from us? Call (920) 249-7744 and we'll handle the claim with the brand.


During quick suspension cycling, a coil spring can unload and then rotate or shift in its seat. This TeraFlex retainer kit prevents that at two positions on the 2007-2018 Jeep Wrangler JK: the front lower and the rear upper. For a Jeep that gets driven hard over rough ground, it is a low-profile way to keep springs where they belong.

Why it works

  • Keeps springs seated: stops a coil from rotating or shifting after it unloads.
  • Two positions: covers the front lower and rear upper spring seats.
  • Precision cut: the parts are precision cut.
  • Zinc plated: for durability.

Fitment

Made for the 2007-2018 Jeep Wrangler JK. TeraFlex lists it under its JK line, and the vendor data ties it to the JK chassis only, so it does not fit the older TJ or the newer JL. The kit is listed for the front lower and rear upper positions only. TeraFlex sells a rear-upper-only kit, part 4951400, separately.

Questions before you order?

Fitment questions are easier to settle before the box ships. Call or text us at (920) 249-7744.

Install guides & documents

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TeraFlex Coil Spring Retainer Kit, Front Lower & Rear Upper FAQs

Which spring positions does this kit cover?

Front lower and rear upper.

Is there a version for just the rear upper?

Yes, TeraFlex lists a Rear Upper kit as part 4951400.

Why use spring retainers?

They are designed to stop the spring from rotating or shifting when it unloads during rapid suspension cycling.

What finish do the parts have?

Zinc plated, per the vendor.

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