Heavy Duty Truck Parts

New Parts Added! Sign Up for Updates

SKU: TRN03345

AUX. M/S GEAR 11707LL, 11708LL | 1668-104-C, 21319B, 3088-, FUL21319, FUR-, FUR21319, M1321319, S-9142, S9142, 3088-21319, FUR-21319

Regular price $138.24
Shipping calculated at checkout.


If you need to order multiple parts, give us a call so our sales team can work to combine your order into fewer packages and save you money on shipping! 858-898-1558

Delivery and Shipping

This part typically ships within 1 to 2 business days.

This Manual Transmission Main Shaft Gear is precision manufactured to OEM synchronizer, gear, and bearing specifications for smooth, notch-free gear engagement in commercial trucks.

Specifications

Gear Position Reduction Gear
Spline Quantity 18
Tooth Quantity 48
Warranty Period 1 Year or 100,000 Miles

Interchange / Cross-Reference Numbers

Brand Part Number
International 1668-104-C
Fuller- Transmissions 21319B
Mack 3088-
Fuller- Transmissions FUL21319
Genuine Newstar FUR-
Fuller- Transmissions FUR21319
Timken M1321319
Genuine Newstar S-9142
Genuine Newstar S9142

Payment & Security

Payment methods

  • Amazon
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.