Name: USA Standard Gear Manual Transmission Bearing Kit NSG370 for 2012-2014 Jeep with Synchros
Brand: USA Standard Gear
SKU: ZMBK478WS
Price: 1651.53 USD
Availability: InStock

// THE FULL RUNDOWN

The ZMBK478WS by USA Standard Gear is a comprehensive manual transmission bearing kit specifically designed for the NSG370 transmission, compatible with 2012-2014 Jeep models equipped with synchronizers. This kit is essential for anyone looking to maintain or rebuild their transmission with precision-engineered components. Features Installation Notes: This kit includes a complete set of bearings and seals, along with synchronizer rings. The 5-6 synchronizer rings feature a bronze lining with three bent tabs, while the 1-4 rings come with six tabs. If your original rings have only four tabs, trim two tabs off the new rings for proper fitment. Fitment Proposition 65 ⚠ WARNING: Cancer and Reproductive Harm https://www.P65Warnings.ca.gov

// WILL IT FIT? THE STRAIGHT ANSWER

VEHICLE	YEARS	TRIM
Chrysler Crossfire	2004-2007	Base
Chrysler Crossfire	2005-2008	Limited
Chrysler Crossfire	2005-2006	SRT-6
Dodge Nitro	2007-2008	SLT
Dodge Nitro	2007-2008	ATX
Dodge Nitro	2007-2008	R/T
Dodge Nitro	2007	MTX
Dodge Nitro	2007-2008	SXT
Dodge Nitro	2007	SLT Premium
Dodge Nitro	2008	SE
Jeep Liberty	2005-2008	Sport
Jeep Liberty	2005-2008	Limited
Jeep Liberty	2005-2006	Renegade
Jeep Liberty	2005	Rocky Mountain Edition
Jeep Liberty	2006	65th Anniversary Edition
Jeep Liberty	2006	Sport 65 Aniversario
Jeep Liberty	2007	Sport Edicion Especial
Jeep Liberty	2008	Sky Slider
Jeep Liberty	2008	North Edition
Jeep Wrangler	2005-2006, 2012	Unlimited
Jeep Wrangler	2005-2012	Rubicon
Jeep Wrangler	2005-2006	SE
Jeep Wrangler	2005-2006, 2010-2012	Sport
Jeep Wrangler	2005-2012	Unlimited Rubicon
Jeep Wrangler	2005-2011	X
Jeep Wrangler	2006	65th Anniversary Edition
Jeep Wrangler	2006	X 65 Aniversario
Jeep Wrangler	2007-2011	Unlimited X
Jeep Wrangler	2007-2012	Unlimited Sahara
Jeep Wrangler	2007-2012	Sahara
Jeep Wrangler	2009	X-S
Jeep Wrangler	2010, 2012	Unlimited Mountain
Jeep Wrangler	2010	Islander
Jeep Wrangler	2010-2012	Unlimited Sport
Jeep Wrangler	2011	Unlimited 70th Anniversary
Jeep Wrangler	2011	70th Anniversary
Jeep Wrangler	2012	Unlimited Altitude

JAP FITMENT PROMISE // If we confirm fitment for your rig and it doesn't fit, return shipping is on us. No restocking fee. That's the deal.

// GETTING IT TO YOUR GARAGE

THIS PART //

Ships LTL truck freight — estimated $450.00 per unit + $54.95 shipping protection per freight order. Each additional freight unit adds its own freight charge. Exact rate calculated at checkout.

REAL-COST SHIPPING

We charge what the carrier charges — no padding, no games. Ground parcels via UPS/FedEx, signature required. You see the exact number before you pay.

1-2 DAY HANDLING

Most in-stock parts leave the warehouse within 1-2 business days. Built-to-order parts show extended lead times.

LTL FREIGHT FOR THE BIG STUFF

Bumpers, hardtops, axles and full kits ship LTL truck freight (typically $400-500 per unit, plus shipping protection). Freight is charged per unit — two bumpers means two freight charges. Inspect before signing and note any damage on the delivery receipt.

30-DAY RETURNS

Unused, uninstalled parts in original packaging within 30 days. RMA required — start with a quick message. Shipping charges are non-refundable; freight returns quote at carrier rates.

FULL SHIPPING & RETURNS POLICY

// PAY YOUR WAY

CHECKING PAYMENT NETWORK…

ALL MAJOR CARDS + WALLETS

Visa, Mastercard, Amex, Discover, Apple Pay, Google Pay and Link one-tap checkout — live in our Stripe checkout right now. Card numbers never touch our servers.

BUY NOW, PAY LATER — LIVE

Klarna, Afterpay and Zip are active at checkout on eligible orders. Pick your split at payment — get the lift now, pay as you wheel. No JAP paperwork, approval happens right in checkout.

CRYPTO — LIVE AT CHECKOUT

Pay with crypto directly in our Stripe checkout — select the crypto option at payment and settle in USDC and supported coins. On-chain payment, standard order flow, same warranty.

3-D SECURE + RADAR ANTI-FRAUD

Every card payment runs Stripe Radar machine-learning fraud screening, with 3-D Secure (Visa Secure / Mastercard Identity Check) stepping in automatically when your bank requires it. Your card, verified by your bank.

PCI-DSS L1

HIGHEST CARD-SECURITY CERTIFICATION

AES-256 + TLS 1.3

ENCRYPTED IN TRANSIT & AT REST

TOKENIZED

WE NEVER SEE YOUR CARD NUMBER

Payments are processed by Stripe — the same infrastructure behind Amazon, Ford and Shopify checkouts. Dispute protection and receipt trails on every order. See our Privacy Policy.

// COVERED WHEN IT COUNTS

THIS PART //

Backed by the full USA Standard Gear manufacturer warranty. JAP is an authorized dealer — your warranty is valid from day one.

FULL MANUFACTURER WARRANTY

Every part ships new in the box with the manufacturer's standard warranty — terms and duration vary by brand (typically 1 year to limited lifetime on hard parts). We only sell through authorized channels, so coverage is never voided by gray-market sourcing.

WE RUN THE CLAIM WITH YOU

Warranty issue? Don't fight the manufacturer's phone tree alone. Hit our team with your order number and photos — we open the claim with the brand and stay on it until it's resolved.

WHAT WARRANTY DOESN'T COVER

Defects in materials and workmanship are covered. Trail damage, improper installation, modification, and normal wear items (bushings, pads, wear plates) generally are not — that's standard across every brand we carry.

SEPARATE FROM RETURNS

Warranty claims (defects after use) and returns (unused parts within 30 days) are different lanes. Not sure which applies? Message us first — we'll route it the fast way.

START A WARRANTY CLAIM

FITMENT	2012-2014 Jeep with Synchros
BRAND	USA Standard Gear — shop all USA Standard Gear parts →
PART #	ZMBK478WS
SKU	ZMBK478WS
CATEGORY	Driveline > Filter \| Gaskets \| Seals
AVAILABILITY	IN STOCK
RETURNS	30-day return window

USA Standard Gear Manual Transmission Bearing Kit NSG370 for 2012-2014 Jeep with Synchros

// THE FULL RUNDOWN

// WILL IT FIT? THE STRAIGHT ANSWER

// GETTING IT TO YOUR GARAGE

// PAY YOUR WAY

// COVERED WHEN IT COUNTS

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// TRAIL REVIEWS