Heavy Duty Truck Parts

New Parts Added! Sign Up for Updates

SKU: TRN02887

M/S 1ST GEAR, M/S RTLO 16713A | 21024, FUR-, S-39304, S39304, FUR-4300240

Regular price $61.21
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 1st Gear
Spline Quantity 18
Tooth Quantity 60
Warranty Period 1 Year or 100,000 Miles

Interchange / Cross-Reference Numbers

Brand Part Number
World American 21024
Genuine Newstar FUR-
Genuine Newstar S-39304
Genuine Newstar S39304

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.