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Fuel Filters

SKU:K37-1021

Paccar Fuel Filter K37-1021

PACCAR K37-1021 Fuel Filter is a -quality filtration element designed for EPA 2017+ Cummins ISX12 and ISX15 engines. It removes water and contaminants from diesel fuel, helping protect injectors, fuel pumps, and other critical fuel system components while ensuring reliable engine performance.

Key Specifications:

Part Number (SKU): K37-1021
Category: Fuel Filters
Filtration Rating: 15 Micron (Absolute Efficiency 99.8%)
Thread Pitch: 1 3/8-16 UN-2B Standard
Outer Diameter: 118 mm (4.65 in)
Overall Height: 260 mm (10.24 in)

$31.25

$25.00

In Stock

SKU	K37-1021
Brand	CORALFLY
Category	Fuel Filters
Delivery	Ships Same Business Day$5.00/pc standard shipping

Commercial Freight
Direct dispatch · Fleet pricing
100% Fit Guarantee
Direct OEM replacement spec

Specification
Truck Fitment

Technical Specifications

Part Number (SKU)

K37-1021

Primary Category

Fuel Filters

Filtration Efficiency

15 Micron (Absolute Beta Ratio ≥ 1000)

Thread Pitch

1 3/8-16 UN-2B Standard

Outer Diameter

118 mm (4.65 in)

Overall Height

260 mm (10.24 in)

Gasket Outside Diameter

102 mm (4.02 in)

Burst Pressure Test

Surpasses 350 PSI (SAE J1858 Verified)

OEM Cross References

Baldwin

B7299 / BF1284-SP

Donaldson

P550529 / DBF5782

Fleetguard

LF16015 / FS19764

Wix Filters

57746XD / 33651

Information on technical characteristics and cross references is compiled from manufacturer catalog data.

Chassis Models

VNL 760VNL 860VNRVHD

Engine Fitment

Volvo D13D13TCD11

Chassis Models

Cascadia 126Cascadia 116122SD

Engine Fitment

Detroit Diesel DD15DD13DD16

Chassis Models

T680W900T880C500

Engine Fitment

PACCAR MX-13Cummins X15

Chassis Models

579389567

Engine Fitment

PACCAR MX-13Cummins X15

Chassis Models

AnthemPinnacleGranite

Engine Fitment

Mack MP8MP7

Truck Make	Chassis / Model	Production Years	Engine Compatibility
🚛Volvo	VNL 760VNL 860VNRVHD	2016–2026	Volvo D13D13TCD11
🚛Freightliner	Cascadia 126Cascadia 116122SD	2017–2026	Detroit Diesel DD15DD13DD16
🚛Kenworth	T680W900T880C500	2015–2026	PACCAR MX-13Cummins X15
🚛Peterbilt	579389567	2015–2026	PACCAR MX-13Cummins X15
🚛Mack	AnthemPinnacleGranite	2018–2026	Mack MP8MP7

$16.00$20.00

In Stock

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1 / 6

Fuel Filters

SKU:K37-1021

Paccar Fuel Filter K37-1021

Key Specifications:

Part Number (SKU): K37-1021
Category: Fuel Filters
Filtration Rating: 15 Micron (Absolute Efficiency 99.8%)
Thread Pitch: 1 3/8-16 UN-2B Standard
Outer Diameter: 118 mm (4.65 in)
Overall Height: 260 mm (10.24 in)

See Full Specification

$31.25

$25.00

In Stock

SKU	K37-1021
Brand	CORALFLY
Category	Fuel Filters
Delivery	Ships Same Business Day$5.00/pc standard shipping

Commercial Freight
Direct dispatch · Fleet pricing
100% Fit Guarantee
Direct OEM replacement spec

Specification
Truck Fitment

Technical Specifications

Part Number (SKU)

K37-1021

Primary Category

Fuel Filters

Filtration Efficiency

15 Micron (Absolute Beta Ratio ≥ 1000)

Thread Pitch

1 3/8-16 UN-2B Standard

Outer Diameter

118 mm (4.65 in)

Overall Height

260 mm (10.24 in)

Gasket Outside Diameter

102 mm (4.02 in)

Burst Pressure Test

Surpasses 350 PSI (SAE J1858 Verified)

OEM Cross References

Baldwin

B7299 / BF1284-SP

Donaldson

P550529 / DBF5782

Fleetguard

LF16015 / FS19764

Wix Filters

57746XD / 33651

Information on technical characteristics and cross references is compiled from manufacturer catalog data.

Chassis Models

VNL 760VNL 860VNRVHD

Engine Fitment

Volvo D13D13TCD11

Chassis Models

Cascadia 126Cascadia 116122SD

Engine Fitment

Detroit Diesel DD15DD13DD16

Chassis Models

T680W900T880C500

Engine Fitment

PACCAR MX-13Cummins X15

Chassis Models

579389567

Engine Fitment

PACCAR MX-13Cummins X15

Chassis Models

AnthemPinnacleGranite

Engine Fitment

Mack MP8MP7

Truck Make	Chassis / Model	Production Years	Engine Compatibility
🚛Volvo	VNL 760VNL 860VNRVHD	2016–2026	Volvo D13D13TCD11
🚛Freightliner	Cascadia 126Cascadia 116122SD	2017–2026	Detroit Diesel DD15DD13DD16
🚛Kenworth	T680W900T880C500	2015–2026	PACCAR MX-13Cummins X15
🚛Peterbilt	579389567	2015–2026	PACCAR MX-13Cummins X15
🚛Mack	AnthemPinnacleGranite	2018–2026	Mack MP8MP7

In Stock

Commercial Truck Oil & Lube Filtration

Paccar Fuel Filter K37-1021

Verified Commercial Fleet Fitment

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Detroit Diesel A4720921705 Fuel Filter Kit — DD13 DD15 DD16 (2020+)

Detroit Diesel Fuel Filter Kit A4700903151

FS19764 Fuel Water Separator

FS19765 Fuel Water Separator

FS19915 Fuel Filter with Water Separator — Freightliner DD15

Contact Us

Information

Customer Care

Commercial Truck Oil & Lube Filtration

Paccar Fuel Filter K37-1021

Verified Commercial Fleet Fitment

Related Filters & Service Kits

Detroit Diesel A4720921705 Fuel Filter Kit — DD13 DD15 DD16 (2020+)

Detroit Diesel Fuel Filter Kit A4700903151

FS19764 Fuel Water Separator

FS19765 Fuel Water Separator

FS19915 Fuel Filter with Water Separator — Freightliner DD15