Wix 33123 Fuel Water Separator Filter - Primary

Brand Wix 33123
Position Primary
Burst Pressure 240
Class HB
Drain Cock 1
Duty Type HD
Flow Rate 15
Height 6.629
Inner Diameter Top Closed
Media Material Enhanced Cellulose
Micron 12.00
Outer Diameter Top 3.698
Style Spin-On Fuel/Water Separator F
Thread Size 1-12
Fits Chevrolet and GMC · 56 vehicles

Heavy-duty design. Built for demanding fuel and water separation service.

Enhanced cellulose media. Helps trap contaminants for cleaner fuel and water removal.

Leak-resistant construction. Corrosion-resistant components and superior sealing help maintain performance.

Cross-references ACDelco 12944, ACDelco T944 and ACDelco T944C for the same application. See all 52.

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WIX 33123 Fuel Water Separator Filter

The WIX 33123 fuel water separator filter is built for heavy-duty fuel systems that need clean fuel and reliable water removal. With enhanced cellulose media, a 12-micron rating, and a spin-on design, it supports consistent filtration for older Chevrolet and GMC trucks and vans that use this application.

Key Features

  • Enhanced cellulose media for contaminant holding capacity
  • 12-micron filtration for fine particle capture
  • Spin-on fuel/water separator style for service-friendly replacement
  • Drain cock included for water purging
  • High-strength, corrosion-resistant can, center tube, and end caps
  • Leak-resistant sealing components for dependable operation
  • 1-12 thread size, 6.629 in. height, 3.698 in. outer diameter
  • 240 burst pressure rating and 15 flow rate

Detailed Description

WIX 33123 is a heavy-duty fuel water separator filter engineered for fuel systems where water control matters. The enhanced cellulose media is paired with durable metal construction and improved sealing components to help maintain clean fuel delivery while resisting corrosion and leaks. This part cross-references FRAM P3710 and Baldwin BF781 for the same application. It is a direct replacement choice for many Chevrolet C10, K10, K5 Blazer, and GMC C1500 applications, including 1982-1983 Chevrolet C10 and 1982-1983 GMC K1500 fitments.

What It Helps Address

  • Water contamination in diesel or fuel separator service
  • Excess dirt and debris entering the fuel system
  • Restricted fuel flow from a loaded filter element
  • Leak concerns at the filter canister or sealing surfaces
  • Service intervals that require water draining and filter replacement

Installation Notes and Tips

Verify thread size, height, and outer diameter before installation. Prime and inspect the sealing surfaces during service, then use the drain cock to purge collected water as needed. Confirm the vehicle application against the listed fitment for Chevrolet C10, C20, K10, K20, K30, K5 Blazer, P20, P30, and GMC C1500, C2500, K1500, K2500, and related models.

Quality Assurance

WIX builds this fuel water separator with corrosion-resistant components, a 12-micron media design, and leak-resistant sealing details for dependable heavy-duty service. Part number 33123 is listed for 1982-1983 Chevrolet and GMC applications shown in the fitment data.

This part fits 56 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
1983ChevroletC106.2LV8N/A
1983ChevroletC10 Suburban6.2LV8DIESELN/A
1983ChevroletC206.2LV8N/A
1983ChevroletC20 Suburban6.2LV8DIESELN/A
1983ChevroletC306.2LV8N/A
1983ChevroletG206.2LV8DIESELN/A
1983ChevroletG306.2LV8DIESELN/A
1983ChevroletK106.2LV8N/A
1983ChevroletK10 Suburban6.2LV8DIESELN/A
1983ChevroletK206.2LV8N/A
1983ChevroletK20 Suburban6.2LV8DIESELN/A
1983ChevroletK306.2LV8N/A
1983ChevroletK5 Blazer6.2LV8DIESELN/A
1983ChevroletP206.2LV8DIESELN/A
1983ChevroletP306.2LV8DIESELN/A
1983GMCC15006.2LV8DIESELN/A
1983GMCC1500 Suburban6.2LV8DIESELN/A
1983GMCC25006.2LV8DIESELN/A
1983GMCC2500 Suburban6.2LV8DIESELN/A
1983GMCC35006.2LV8DIESELN/A
1983GMCG25006.2LV8DIESELN/A
1983GMCG35006.2LV8DIESELN/A
1983GMCJimmy6.2LV8DIESELN/A
1983GMCK15006.2LV8DIESELN/A
1983GMCK1500 Suburban6.2LV8DIESELN/A
1983GMCK25006.2LV8DIESELN/A
1983GMCK2500 Suburban6.2LV8DIESELN/A
1983GMCK35006.2LV8DIESELN/A
1983GMCP25006.2LV8DIESELN/A
1983GMCP35006.2LV8DIESELN/A
1982ChevroletC106.2LV8N/A
1982ChevroletC10 Suburban6.2LV8DIESELN/A
1982ChevroletC206.2LV8N/A
1982ChevroletC20 Suburban6.2LV8DIESELN/A
1982ChevroletC306.2LV8N/A
1982ChevroletK106.2LV8N/A
1982ChevroletK10 Suburban6.2LV8DIESELN/A
1982ChevroletK206.2LV8N/A
1982ChevroletK20 Suburban6.2LV8DIESELN/A
1982ChevroletK306.2LV8N/A
1982ChevroletK5 Blazer6.2LV8DIESELN/A
1982ChevroletP206.2LV8DIESELN/A
1982ChevroletP306.2LV8DIESELN/A
1982GMCC15006.2LV8DIESELPrimary
1982GMCC1500 Suburban6.2LV8DIESELN/A
1982GMCC25006.2LV8DIESELPrimary
1982GMCC2500 Suburban6.2LV8DIESELN/A
1982GMCC35006.2LV8DIESELPrimary
1982GMCJimmy6.2LV8DIESELN/A
1982GMCK15006.2LV8DIESELPrimary
1982GMCK1500 Suburban6.2LV8DIESELN/A
1982GMCK25006.2LV8DIESELPrimary
1982GMCK2500 Suburban6.2LV8DIESELN/A
1982GMCK35006.2LV8DIESELPrimary
1982GMCP25006.2LV8DIESELN/A
1982GMCP35006.2LV8DIESELN/A
Directly replaces or cross-references 52 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 12944ACDelco — T944ACDelco — T944CAmerican Parts — 95123Apollo — LFP944FAuto Extra — 61633123Baldwin — BF781Baldwin — BF1266Cam2 — LFP944FCar Care — DF3710CARQUEST Premium Filters — 86123CARQUEST Standard — R86123Caterpillar — 3I1222Champion Automotive — GF45Citgo Petroleum — LFP944FCrosland — 5009Deutsch — FF765Donaldson — FFP550944Donaldson — P550944Duralast — FF765DLECOGARD — XF60266Fleetguard — FF5034Fleetguard — FS1090Fleetrite — FFR85034FRAM — P3710General Motors — 25011233General Motors — 25011285GK Industries — TP944Hastings — 844Hastings — BF1266Hastings — FF844Jurafil — SN40564Kralinator — F155LUBER-FINER — LFP944FLUBER-FINER — LFP944F-1MicroGard — 33123Micron — F6266Mighty Distributing System — LFP944FMighty Distributing System — T944Motorcraft — FD822NAPA Gold Filters — 3123New Holland Construction — 87712547Parts Master — 73123PUREPRO — LFP944FPurolator — F60266Purolator — PER266FQuaker State — QS3710Sakura — SFC-45050Warner — LFP944FWoodgate — WGF5034LFP944FLFP9944F