WIX/NAPA GOLD
Part Number: 51258
UPC Number: 765809512580
Principal Application: AMC (60-81), GM (67-80)
All Applications
Style: Spin-On Lube Filter
Service: Lube
Type: Full Flow
Media: Paper
Height: 4.338
Outer Diameter Top: 3.660
Outer Diameter Bottom: Closed
Thread Size: 13/16-16
By-Pass Valve Setting-PSI: None
Anti-Drain Back Valve: Yes
Beta Ratio: 2/20=11/30
Burst Pressure-PSI: 345
Max Flow Rate: 9-11 GPM
Nominal Micro Rating: 19
Gasket Diameters
Number O.D. I.D. Thk.
15314 2.834 2.462 0.200
Purolator Prem Plus (may not be a perfect X-ref per their site)
L20033
PART NUMBER: L20033
Specifications
Anti-Drain Back Valve: Yes
Height: 3.75
Type of Filter: Spin-on
Threads: 13/16-16
Thread Pitch: Special
Relief Valve P.S.I.: None
O.D.: 3.77
Baldwin
PART NUMBER: B27
Descriptions : Microlite Full-Flow Lube Spin-on
Fits : GMC Light-Duty Trucks, Vans
Replaces : GMC 6437412
Thread : 13/16-16
O.D. : 3 13/16 (96.8)
Length : 4 3/8 (111.1)
I.Gskt : [1] Included
Related to : B6 (Long Version)
Long version
PART NUMBER: B6
Descriptions : Microlite Full-Flow Lube Spin-on
Notes : 1 Quart Capacity
Fits : Chevrolet, GM Automotive, Light-Duty Trucks, Vans
Replaces : GMC 25013454
Thread : 13/16-16
O.D. : 3 13/16 (96.8)
Length : 5 5/16 (134.9)
I.Gskt : [1] Included
Related to : B7 (Long Version)
B27 (Short Version)
B279 (Racing Version)
B1428 (with Anti-Drainback Valve)
Longer version
PART NUMBER: B7
Descriptions : Microlite Full-Flow Lube Spin-on
Notes : 2 Quart Capacity
Fits : Chevrolet, GMC Trucks, Buses
Replaces : GMC 6439034
Thread : 13/16-16
O.D. : 3 11/16 (93.7)
Length : 8 23/32 (221.5)
I.Gskt : G383-B
Related to : B6 (Short Version)
Long version in NAPA/WIX
Part Number: 51061
UPC Number: 765809510616
Principal Application: Chevrolet and GMC Trucks (63-90) - (Two Quart Version is 51794)
All Applications
Style: Spin-On Lube Filter
Service: Lube
Type: Full Flow
Media: Paper
Height: 5.178
Outer Diameter Top: 3.660
Outer Diameter Bottom: Closed
Thread Size: 13/16-16
By-Pass Valve Setting-PSI: None
Beta Ratio: 2/20=11/27
Burst Pressure-PSI: 285
Max Flow Rate: 9-11 GPM
Nominal Micro Rating: 19
Longer version in WIX
Part Number: 51794
UPC Number: 765809517943
Principal Application: Chevrolet and GMC Trucks (73-93)
All Applications
Style: Spin-On Lube Filter
Service: Lube
Type: Full Flow
Media: Paper
Height: 7.822
Outer Diameter Top: 3.674
Outer Diameter Bottom: Closed
Thread Size: 13/16-16
By-Pass Valve Setting-PSI: None
Burst Pressure-PSI: 270
Max Flow Rate: 9-11 GPM
Nominal Micro Rating: 24
Gasket Diameters
Number O.D. I.D. Thk.
15267 3.444 3.100 0.260
I don't have an AC Delco x-ref on hand since I don't use it often
..but this should give you some options. I'm sure others will chime in with a good # for you.