Brand: National Seal/Bearing Part Number: 2457 Item Condition: New Item Description: Auto Trans Extension Housing Seal Manufacturer Brand Description: Auto Trans Extension Housing Seal Quantity Needed: 1; Item Specifics: UPC: 614046182264 Application Summary - 2000: Chevrolet Avalanche 2500 AT 02; Blazer AT 94-91; C1500 AT 98-91; C1500 Suburban AT 99-94; C2500 AT 00-91; C2500 Suburban AT 99-92; C3500 AT 00-91; C3500HD AT 02-91; Express 2500 AT 09-96; Express 3500 AT 09-96; Express 4500 AT 09; G2 Feature 4: Temperature range: -40DegF to 225DegF; -40DegC to 107DegC Feature 5: Delivers quality and reliable performance for every type of repair Marketing Description - 2000: National(R) has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today's vehicles. Country of Origin (Primary): TW Emission Code : 1 Feature 1: Low swell in hydrocarbon fluids Feature 2: Design type: spring loaded; multi-lip Feature 3: Provides good low temperature capability Fitment Type: Direct Replacement Harmonized Tariff Code (HTS): 4016931020 Inside Diameter: 53.980 Interchange Part Number: 24235725, 21111, 24232324, 2457, 47453, P2457 Life Cycle Status Code: 2 Life Cycle Status Description: Available to Order MSDS Required Flag: N Other Part Number: WS2457 Outside Diameter: 73.280 Product Description - Invoice - 40: Multi Purpose Seal Product Description - Long - 80: Multi Purpose Seal Product Description - Short - 20: Multi Purpose Seal Remanufactured Part: N Sealing Material: Polyacrylate Taxable: Y Thickness: 13.970 See Item Specifics section for additional specifications about this part. Vehicle Fitment Summary To confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table. Also review the notes section in the compatibility chart for additional specifications about this part. This part generally fits Chevrolet, GMC, Hummer, Workhorse vehicles and includes models such as Avalanche 2500, Blazer, C1500, C1500 Suburban, C2500, C2500 Suburban, C3500, C3500HD, Express 2500, Express 3500, Express 4500, FasTrack FT1061, FasTrack FT1260, FasTrack FT1261, FasTrack FT1460, FasTrack FT1461, FasTrack FT1600, FasTrack FT1601, FasTrack FT1800, FasTrack FT1801, FasTrack FT1802, FasTrack FT931, G20, G2500, G30, G3500, H1, Jimmy, K1500, K1500 Suburban, K2500, K2500 Suburban, K3500, P30, P32, P3500, R1500 Suburban, R2500 Suburban, R3500, Savana 2500, Savana 3500, Savana 4500, Sierra 1500, Sierra 2500, Sierra 2500 HD, Sierra 2500 HD Classic, Sierra 3500, Sierra 3500 Classic, Silverado 2500, Silverado 2500 HD, Silverado 2500 HD Classic, Silverado 3500, Silverado 3500 Classic, Suburban 2500, Tahoe, V1500 Suburban, V2500 Suburban, V3500, Yukon, Yukon XL 1500, Yukon XL 2500 with the trims of Sierra SLT Extended Cab Pickup 2-Door, SLT Sport Utility 4-Door, Rally STX Extended Passenger Van 3-Door, Silverado Crew Cab Pickup 4-Door, Base Cab Chassis 3-Door, Silverado Cab Chassis 2-Door, WT Extended Cab Pickup 4-Door, Base Extended Cab Pickup 4-Door, Base Cutaway Van 2-Door, SL Standard Cab Pickup 2-Door, WT Standard Cab Pickup 2-Door, Base Standard Cargo Van 5-Door, Rally STX Standard Passenger Van 3-Door, Cheyenne Crew Cab Pickup 4-Door, Sportvan Standard Passenger Van 3-Door, Hi-Cube Cutaway Van 2-Door, Silverado Sport Sport Utility 2-Door, Sierra SLT Cab Chassis 4-Door, LS Standard Passenger Van 3-Door, LT Cab Chassis 3-Door, LT Extended Cab Pickup 4-Door, LS Standard Cargo Van 3-Door, SLT Crew Cab Pickup 4-Door, 400 SS Standard Cab Pickup 2-Door, Sierra SL Standard Cab Pickup 2-Door, Base Extended Cargo Van 3-Door, SLE Cab Chassis 3-Door, SLE Extended Passenger Van 3-Door, Silverado Standard Cab Pickup 2-Door, Sierra SLE Extended Cab Pickup 3-Door, SLT Sport Utility 2-Door, LS Extended Cab Pickup 4-Door, Sierra SLE Cab Chassis 2-Door, LS Cab Chassis 4-Door, Scottsdale Sport Utility 2-Door, SL Standard Passenger Van 4-Door, Scottsdale Crew Cab Pickup 4-Door, LT Standard Cab Pickup 2-Door, Sierra SLT Standard Cab Pickup 2-Door, SLT Standard Passenger Van 3-Door, SLE Cab Chassis 2-Door, SLE Crew Cab Pickup 4-Door, Sierra GT Standard Cab Pickup 2-Door, Silverado Extended Cab Pickup 3-Door, Sierra SLX Extended Cab Pickup 2-Door, LS Extended Cab Pickup 3-Door, Chevy Van Standard Cargo Van 3-Door, Sierra SLE Extended Cab Pickup 2-Door, Chevy Van Cutaway Van 2-Door, Base Standard Passenger Van 3-Door, Denali Sport Utility 4-Door, Rally Camper Special Cutaway Van 2-Door, SLE Extended Cargo Van 3-Door, Sierra SL Cab Chassis 2-Door, SL Extended Cab Pickup 4-Door, Beauville Standard Passenger Van 3-Door, LT Sport Utility 2-Door, Sierra Crew Cab Pickup 4-Door, LT Cab Chassis 4-Door, Base Standard Cab Pickup 2-Door, Base Standard Cargo Van 3-Door, LS Cab Chassis 2-Door, Sierra SLT Extended Cab Pickup 3-Door, LS Crew Cab Pickup 4-Door, Base Cab Chassis 2-Door, Base Cab Chassis - Long Conventional 2-Door, SL Cab Chassis 4-Door, LT Sport Utility 4-Door, LS Standard Cargo Van 4-Door, SLT Extended Cab Pickup 3-Door, Sierra SLX Crew Cab Pickup 4-Door, C3 Extended Cab Pickup 4-Door, Scottsdale Standard Cab Pickup 2-Door, Sierra Special Standard Cab Pickup 2-Door, Custom Standard Cab Pickup 2-Door, Rally Extended Passenger Van 3-Door, Beauville Extended Passenger Van 3-Door, SL Extended Passenger Van 3-Door, LS Extended Cargo Van 3-Door, LT Standard Cargo Van 4-Door, Base, WT Cab Chassis 2-Door, LT Crew Cab Pickup 4-Door, SL Crew Cab Pickup 4-Door, Silverado Cab Chassis 4-Door, Scottsdale Cab Chassis 4-Door, WT Cab Chassis 4-Door, Rally Standard Passenger Van 3-Door, SLE Standard Passenger Van 3-Door, Base Cab Chassis 4-Door, Base Cab Chassis - Long Conventional 4-Door, Silverado Sport Utility 2-Door, Chevy Van Extended Cargo Van 3-Door, Base Stripped Chassis, LT Extended Cargo Van 3-Door, SL Standard Passenger Van 3-Door, Sport Sport Utility 2-Door, Cheyenne Cab Chassis 4-Door, LS Extended Cab Pickup 2-Door, SLT Cab Chassis 4-Door, SLT Extended Passenger Van 3-Door, LS Standard Passenger Van 4-Door, Base Extended Cab Pickup 2-Door, Base Extended Cab Pickup 3-Door, LS Standard Cab Pickup 2-Door, LT Extended Cab Pickup 3-Door, SLT Cab Chassis 3-Door, LS Extended Passenger Van 3-Door, 454 SS Standard Cab Pickup 2-Door, Base Standard Cargo Van 4-Door, LT Standard Passenger Van 4-Door, SL Extended Cab Pickup 3-Door, Scottsdale Extended Cab Pickup 2-Door, LT Standard Passenger Van 3-Door, WT Crew Cab Pickup 4-Door, Sierra SLE Standard Cab Pickup 2-Door, Magnavan Cutaway Van 2-Door, Silverado Sport Utility 4-Door, Base Sport Utility 2-Door, Vandura Standard Cargo Van 3-Door, Vandura Special Cutaway Van 2-Door, Sierra SL Crew Cab Pickup 4-Door, SLE Sport Utility 2-Door, SLE Standard Cab Pickup 2-Door, Base Cutaway 2-Door, LS Sport Utility 4-Door, SL Cab Chassis 2-Door, Sierra SL Cab Chassis 4-Door, LT Extended Passenger Van 3-Door, Sierra SLT Cab Chassis 2-Door, Base Extended Passenger Van 4-Door, SLE Extended Cab Pickup 4-Door, SLE Cab Chassis 4-Door, LS Cab Chassis 3-Door, Scottsdale Sport Utility 4-Door, SLE Standard Passenger Van 4-Door, Base Standard Cargo Van 2-Door, Base Crew Cab Pickup 4-Door, SL Sport Utility 2-Door, Sierra SLE Cab Chassis 4-Door, Sierra SLT Crew Cab Pickup 4-Door, SLE Extended Passenger Van 4-Door, Sierra SLX Cab Chassis 4-Door, HD Standard Cab Pickup 2-Door, SLT Cab Chassis 2-Door, Sportvan Extended Passenger Van 3-Door, Vandura Extended Cargo Van 3-Door, Cheyenne Extended Cab Pickup 2-Door, Sierra Extended Cab Pickup 2-Door, Sierra SLE Crew Cab Pickup 4-Door, Sierra SL Extended Cab Pickup 3-Door, Silverado Extended Cab Pickup 2-Door, LT Cab Chassis 2-Door, Sierra SLS Standard Cab Pickup 2-Door, LT Standard Cargo Van 3-Door, Sierra SLX Standard Cab Pickup 2-Door, SL Cab Chassis 3-Door, Sierra SLX Cab Chassis 2-Door, Scottsdale Cab Chassis 2-Door, Sierra Cab Chassis 4-Door, SLE Sport Utility 4-Door, Cheyenne Extended Cab Pickup 3-Door, Cheyenne Cab Chassis 2-Door, SLE Extended Cab Pickup 3-Door, Base Extended Passenger Van 3-Door, Base Sport Utility 4-Door, Sierra SL Extended Cab Pickup 2-Door, Sierra Standard Cab Pickup 2-Door, Cheyenne Standard Cab Pickup 2-Door, LS Sport Utility 2-Door, SLT Extended Cab Pickup 4-Door, Sierra Cab Chassis 2-Door . The engine types may include 6.5L 395Cu. In. V8 DIESEL OHV Turbocharged, 5.7L 350Cu. In. V8 CNG OHV Naturally Aspirated, 5.7L 350Cu. In. V8 BI-FUEL OHV Naturally Aspirated, 5.3L 323Cu. In. V8 GAS OHV Naturally Aspirated, 6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated, 5.3L 325Cu. In. V8 GAS OHV Naturally Aspirated, 5.3L 5328CC 325Cu. In. V8 FLEX OHV Naturally Aspirated, 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated, 6.0L 5967CC 364Cu. In. V8 CNG OHV Naturally Aspirated, 5.7L 5735CC 350Cu. In. V8 GAS OHV Naturally Aspirated, 5.3L 5328CC 325Cu. In. V8 GAS OHV Naturally Aspirated, 6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged, 4.3L 262Cu. In. V6 GAS OHV Naturally Aspirated, 6.0L 5967CC 364Cu. In. V8 BI-FUEL OHV Naturally Aspirated, 3.9L 239Cu. In. l4 DIESEL OHV Turbocharged, 4.1L 4097CC 250Cu. In. l6 GAS OHV Naturally Aspirated, 4.8L 294Cu. In. V8 GAS OHV Naturally Aspirated, 6.2L 379Cu. In. V8 DIESEL OHV Naturally Aspirated, 8.1L 496Cu. In. V8 GAS OHV Naturally Aspirated, 6.5L 395Cu. In. V8 DIESEL OHV Naturally Aspirated, 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated, 4.1L 4098CC 250Cu. In. l6 GAS OHV Naturally Aspirated, 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated. This part fits vehicles made in the following years 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009. To confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table. Also review the notes section in the compatibility chart for additional specifications about this part. Interchange Part Numbers This item may interchange to the following part numbers from other brands. This is provided for reference only and does not guarantee that the part your are buying is identical to the part numbers from the brands listed below. To confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table. Brands: ACDELCO GM ORIGINAL EQUIPMENT, ACDELCO GM ORIGINAL EQUIPMENT CANADA, CARQUEST, PARTS PLUS BEARINGS SEALS, PRECISION AUTOMOTIVE INDUSTRIES, SKF (CHICAGO RAWHIDE), TIMKEN, VIC-TO-DROP-USE-MHL, WJB Part Numbers: 21111, 24232324, 24235725, 2457, 47453, P2457, WS2457 Poughkeepsie unit 7 pallet 11