CSF 3937 OEM Style Replacement Radiator

PART# 3937 | SKU CSF3937
★★★★★ ★★★★★ 1.0 (1 Reviews)

Vehicle Fitment For:
2019-2026 Ram 3500/4500/5500 with 6.7L Cummins Engine | 2025-2026 Ram 2500 with 6.7L Cummins Engine (High Output)

See full application list below
NOTES: Does not fit Standard Output engines
$261.00

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Description

Replace the damaged or leaking radiator in your Ram 6.7L Diesel (High-Output) with the CSF 3937 OEM Style Replacement Radiator from XDP. CSF OEM style radiators are built to be a direct-fit, bolt-in replacement for a no-hassle repair. The drop-in design requires no modifications for installation and works with all stock equipment including OEM hoses, brackets, and mounting points. This radiator meets or exceeds the OE performance of your factory Ram 3500 radiator.

CSF is an industry leader in automotive cooling for both OE and the performance aftermarket. CSF tests every radiator design in-house with their state-of-the-art testing facility which includes wind tunnel, burst pressure testing, vibration testing, thermal cycle, and salt spray corrosion testing. When CSF identifies a weakness in either the OEM design or performance, a stronger solution is implemented for class-leading performance and durability. Individually pressure tested and serial # certified. This radiator is covered by CSF's 1-year warranty.


Features:
  • OEM Style Replacement
  • Direct Bolt-On Installation
  • Meets or Exceeds OE Specs
  • Individually Pressure Tested
  • Backed By 1-Year CSF Warranty

Specifications:
Bottom Hose Fitting (In): 1-5/16 Right
Top Hose Fitting (In): 1-15/16 Left
Core Length (in): 39-3/8
Core Material: Aluminum
Core Thickness (In): 1-5/8
Core Width (in): 20-5/16
Cross-flow/Down-Flow: Cross Flow
Inlet Length (In): 20-7/8
Inlet Width (In): 2-3/16
Number Of Rows: 2
Oil Cooler: No
Outlet Length (In): 20-7/8
Outlet Width (In): 2-3/16
Radiator Cap Supplied: No
Tank Material: Plastic
Tech Note: O.E.M. Style Plastic Tank & Aluminum Core
Note:
Does not fit Standard Output engines
Disclaimer: XDP is in no way affiliated with Cummins or any of its subsidiaries or related companies, and that Cummins has not authorized the sale of any of XDP's parts, and has not tested or approved any of XDP’s parts for use in genuine Cummins brand products.

Reviews For CSF 3937

Overall Rating
1.0/5
1 Review
Rating Snapshot
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★★★★★ ★★★★★
Not worth it
Chris (Florida) | August 23rd, 2025
Purchased 3/31/25. It blew out on a haul just 4 months later.
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More to Consider

Specifications For CSF 3937

MPN 3937
SKU CSF3937
ID 127372
Manufacturer Name CSF
Shipping Weight 25.00 lb.
Shipping Length 48 in.
Shipping Width 25 in.
Shipping Height 9 in.
Fuel Type Diesel
Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
Cross Reference # 68322492AA, CH3010390
Internal L0R0

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