Preloader Preloader

Dorman - Non-Pressurized Coolant Reservoir - 603-100

12 Left in Stock
$27.44
Free Shipping All over the US
SKU: 591|603-100

Guaranteed safe checkout

google paypaypalvisa
Dorman - Non-Pressurized Coolant Reservoir - 603-100
- +
Non-Pressurized Coolant Reservoir

Product Description

This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.

  • Direct replacement - this engine coolant reservoir matches the fit and function of the original part
  • Ideal solution - engineered for a seamless installation
  • Durable construction - manufactured from quality materials to withstand underhood heat and vibration
  • Trustworthy design - backed by 100 years of automotive aftermarket experience

Product Specifications

Cap Included: Yes
Cap Type: Flip Top
Color: White
Material: Plastic
Mounting Brackets Included: Yes
Mounting Hardware Included: No
Mounting Hole Quantity: 3
Package Contents: 1 Coolant Reservoir; 1 Cap
Package Quantity: 1
Packaging Type: Box
Pressurized: No

OE Numbers

15650373 GENERAL MOTORS

Fitment

Year Make Model Configuration Positions Application Notes
2003-2004 Chevrolet Silverado 3500 V8 350 5.7L
2001-2002 Chevrolet C3500HD V8 496 8.1L Front
2000-2002 Chevrolet Silverado 2500 V8 350 5.7L Front
2000-2002 Chevrolet Sonora (Mexico) V8 350 5.7L Front
2001-2002 GMC C3500HD V8 496 8.1L Front
1999-2000 Cadillac Escalade V8 350 5.7L Front
1988-2000 Chevrolet C2500 V8 350 5.7L Front
1991-2000 Chevrolet C2500 V8 454 7.4L Front
1988-2000 Chevrolet C35 (Mexico) V8 350 5.7L Front
1988-2000 Chevrolet C3500 V8 350 5.7L Front
1988-2000 Chevrolet C3500 V8 454 7.4L Front
1991-2000 Chevrolet C3500HD V8 454 7.4L Front
1988-2000 Chevrolet K1500 V8 350 5.7L Front
1988-2000 Chevrolet K2500 V8 350 5.7L Front
1991-2000 Chevrolet K2500 V8 454 7.4L Front
1988-2000 Chevrolet K3500 V8 350 5.7L Front
1988-2000 Chevrolet K3500 V8 454 7.4L Front
1995-2000 Chevrolet Tahoe V8 350 5.7L Front
1988-2000 GMC C2500 V8 350 5.7L Front
1991-2000 GMC C2500 V8 454 7.4L Front
1988-2000 GMC C3500 V8 350 5.7L Front
1988-2000 GMC C3500 V8 454 7.4L Front
1991-2000 GMC C3500HD V8 454 7.4L Front
1988-2000 GMC K2500 V8 350 5.7L Front
1991-2000 GMC K2500 V8 454 7.4L Front
1988-2000 GMC K3500 V8 350 5.7L Front
1988-2000 GMC K3500 V8 454 7.4L Front
1992-2000 GMC Yukon V8 350 5.7L Front
1999 Chevrolet C1500 V6 262 4.3L (4300cc) Front
1988-1999 Chevrolet C1500 V8 305 5.0L Front
1988-1999 Chevrolet C1500 V8 350 5.7L Front
1992-1999 Chevrolet C1500 Suburban V8 350 5.7L Front
1988-1999 Chevrolet C2500 V8 305 5.0L Front
1992-1999 Chevrolet C2500 Suburban V8 350 5.7L Front
1992-1999 Chevrolet C2500 Suburban V8 454 7.4L Front
1988-1999 Chevrolet K1500 V8 305 5.0L Front
1992-1999 Chevrolet K1500 Suburban V8 350 5.7L Front
1992-1999 Chevrolet K2500 Suburban V8 350 5.7L Front
1992-1999 Chevrolet K2500 Suburban V8 454 7.4L Front
1995-1999 Chevrolet Suburban 1500 (Mexico) V8 350 5.7L Front
1988-1999 GMC C1500 V8 305 5.0L Front
1988-1999 GMC C1500 V8 350 5.7L Front
1992-1999 GMC C1500 Suburban V8 350 5.7L Front
1988-1999 GMC C2500 V8 305 5.0L Front
1992-1999 GMC C2500 Suburban V8 350 5.7L Front
1992-1999 GMC C2500 Suburban V8 454 7.4L Front
1988-1999 GMC K1500 V8 305 5.0L Front
1988-1999 GMC K1500 V8 350 5.7L Front
1992-1999 GMC K1500 Suburban V8 350 5.7L Front
1992-1999 GMC K2500 Suburban V8 350 5.7L Front
1992-1999 GMC K2500 Suburban V8 454 7.4L Front
1988-1998 Chevrolet C1500 V6 262 4.3L Front
1988-1998 Chevrolet K1500 V6 262 4.3L Front
1988-1995 Chevrolet K2500 V8 305 5.0L Front
1997-1998 Chevrolet K2500 V8 305 5.0L Front
1988-1998 GMC C1500 V6 262 4.3L Front
1988-1998 GMC K1500 V6 262 4.3L Front
1988-1995 GMC K2500 V8 305 5.0L Front
1998 GMC K2500 V8 305 5.0L Front
1988-1995 Chevrolet C2500 V6 262 4.3L Front
1991-1995 Chevrolet C3500HD V8 350 5.7L Front
1988-1995 Chevrolet K2500 V6 262 4.3L Front
1988-1995 GMC C2500 V6 262 4.3L Front
1991-1995 GMC C3500HD V8 350 5.7L Front
1988-1995 GMC K2500 V6 262 4.3L Front
1992-1994 Chevrolet Blazer V8 350 5.7L Front
1992-1994 Chevrolet R25 V8 350 5.7L Front
1992-1994 Chevrolet Suburban (Mexico) V8 350 5.7L Front
1988-1993 Chevrolet C1500 V8 379 6.2L Front
1990-1993 Chevrolet C1500 V8 454 7.4L Front
1988-1993 Chevrolet C2500 V8 379 6.2L Front
1992-1993 Chevrolet C2500 V8 395 6.5L Front
1988-1993 Chevrolet C3500 V8 379 6.2L Front
1992-1993 Chevrolet C3500 V8 395 6.5L Front
1992-1993 Chevrolet C3500HD V8 395 6.5L Front
1988-1993 Chevrolet K1500 V8 379 6.2L Front
1988-1993 Chevrolet K2500 V8 379 6.2L Front
1992-1993 Chevrolet K2500 V8 395 6.5L Front
1988-1993 Chevrolet K3500 V8 379 6.2L Front
1992-1993 Chevrolet K3500 V8 395 6.5L Front
1988-1993 GMC C1500 V8 379 6.2L Front
1988-1993 GMC C2500 V8 379 6.2L Front
1992-1993 GMC C2500 V8 395 6.5L Front
1988-1993 GMC C3500 V8 379 6.2L Front
1992-1993 GMC C3500 V8 395 6.5L Front
1992-1993 GMC C3500HD V8 395 6.5L Front
1988-1993 GMC K1500 V8 379 6.2L Front
1988-1993 GMC K2500 V8 379 6.2L Front
1992-1993 GMC K2500 V8 395 6.5L Front
1988-1993 GMC K3500 V8 379 6.2L Front
1992-1993 GMC K3500 V8 395 6.5L Front
1989-1991 Chevrolet R3500 V8 350 5.7L Front
1989-1991 Chevrolet R3500 V8 379 6.2L Front
1989-1991 Chevrolet R3500 V8 454 7.4L Front
1989-1991 Chevrolet V3500 V8 350 5.7L Front
1989-1991 Chevrolet V3500 V8 379 6.2L Front
1989-1991 Chevrolet V3500 V8 454 7.4L Front
1988-1991 GMC R3500 V8 350 5.7L Front
1988-1991 GMC R3500 V8 379 6.2L Front
1988-1991 GMC R3500 V8 454 7.4L Front
1988-1991 GMC V3500 V8 350 5.7L Front
1988-1991 GMC V3500 V8 379 6.2L Front
1988-1991 GMC V3500 V8 454 7.4L Front
1988 GMC C2500 V8 350 5.7L (5736cc) Front
1990 GMC C2500 V8 350 5.7L (5736cc) Front
1989 Chevrolet R2500 V8 350 5.7L Front
1989 Chevrolet R2500 V8 379 6.2L Front
1989 Chevrolet R2500 V8 454 7.4L Front
1988-1989 GMC R2500 V8 350 5.7L Front
1988-1989 GMC R2500 V8 379 6.2L Front
1988-1989 GMC R2500 V8 454 7.4L Front
1988 Chevrolet R20 V8 350 5.7L Front
1988 Chevrolet R20 V8 379 6.2L Front
1988 Chevrolet R20 V8 454 7.4L Front
1988 Chevrolet R30 V8 350 5.7L Front
1988 Chevrolet R30 V8 379 6.2L Front
1988 Chevrolet R30 V8 454 7.4L Front
1988 Chevrolet V30 V8 350 5.7L Front
1988 Chevrolet V30 V8 379 6.2L Front
1988 Chevrolet V30 V8 454 7.4L Front

Buy with confidence – If you encounter any issues with your Dorman product, simply reach out to us. We are committed to ensuring your satisfaction and will assist with any return or exchange requests that meet our policy guidelines.

Why Choose Dorman?

Dorman is a trusted leader in OE-style replacement parts, offering precision-engineered solutions for reliable performance. Each part undergoes rigorous testing to ensure durability, safety, and a seamless fit. Designed as a cost-effective alternative to OEM parts, Dorman provides high-quality replacements backed by expert engineering. Choose Dorman for dependable, long-lasting automotive solutions.

We assure you that we ship all the parcels received on the same day till 12 pm standard central time.

  • Usually, it takes 1 to 5 days for the package to reach.
  • Our standard shipping is FedEx home delivery or UPS Ground. Delivery for residential locations is estimated to be on Saturdays ( this applies to 48 continental states).
  • Delivery for residential locations is estimated to be on Saturdays ( this applies to 48 continental states).
  • The email address on the order will send you all the shipment tracking details.
  • Please note that we are not responsible for any delays because of holidays, weather, or anything beyond our control.

We send shipment tracking numbers via email. It is sent to the email address you provided in your order. If you would like to change the email address you provided, Feel free to contact our support team at (support@part-synergy.com).

Return Shipping

We are here to serve you. If there is any item that is damaged or needs to be exchanged or returned for any reason, please contact our support team(support@part-synergy.com). Please read our return and exchange policy to learn more about this.

All orders are free of shipment costs. The cost mentioned on the website is for getting it to your doorstep.

Please do get in touch with our customer support as they may be able to provide you with a return label which will cost you much less. But if you still need to send an item back, here is our shipping address. 

USA MAP For Shipping
1 Day 2 Days 3 Days 4 Days 5 Days 6 Days 7+ Days
If Picked Up On Will be delivered by
Monday Tue Wed Thu Fri Mon@ Tue@ Wed=
Tuesday Wed Thu Fri Mon Tue@ Wed@ Thu=
Wednesday Thu Fri Sat Tue Wed@ Thu@ Fri=
Thursday Fri Sat Sun^ Wed Thu@ Fri@ Mon=
Friday Sat Sun^ Mon Thu Fri@ Mon@ Tue=
Saturday Tue* Wed Thu Fri Mon@ Tue@ Wed=
Sunday Tue** Wed Thu Fri Mon@ Tue@ Wed=

*Sunday^ delivery if the shipper is enrolled in weekend spotted trailer pickups

**Monday delivery if the shipper is enrolled in weekend spotted trailer pickups

^Monday if not a Sunday eligible ZIP code

@ The following week

= Earliest possible delivery the following week

This map illustrates service schedules in business days as of April 2022 for FedEx Home Delivery shipments

© 2018 FedEx. All rights reserved.

The Service Maps and charts are a general representations of transit. For more accurate transit quotes visit Shipping Rates and Delivery Times on fedex.com

Please Note: Packages picked up from a residence may have one additional transit day. For faster returns please drop off at a staffed FedEx location.