Description
About the Chevy Suburban 3500 Gas Tank
The Chevy Suburban 3500 was a rare low-production 1-ton heavy-duty variant that existed primarily 1973-1999 (round-body C/K era and GMT400 generation). DISCONTINUED for 2000+ Suburbans – modern Suburbans only come in 1500 (and 2500 from 1992-2013).
Engines common to Suburban 3500: 5.7L (350ci) small block V8 (most common), 7.4L (454ci) big block V8 (HD towing), 6.5L diesel V8 (predecessor to Duramax), 6.2L diesel V8 (earlier). Multiple fuel tank capacities (30-42 gallon typical), some with dual tank setups.
Cross-reference GMC Suburban 3500 sister vehicle (pre-2000, GMC eventually rebranded Yukon XL) and Chevy/GMC C/K 3500 pickup gas tanks of same era (shared chassis/fuel system architecture). Vintage specialty sourcing 14-30 business days. We inspect for leaks, corrosion, mounting integrity.
Suburban 3500 Generation Coverage
Round-Body Era 1973-1991
- Configuration: C/K platform shared with pickup trucks
- Production: Some 1-ton 3500 variants across multiple decades
- Engines: 350 small block, 454 big block, 6.2 diesel, etc.
- Applications: Government, commercial, specialty configurations
GMT400 Era 1992-1999
- Configuration: GMT400 platform shared with C/K pickups
- Production: Low-production C/K 3500 Suburban with HD chassis
- Engines: 5.7L Vortec 350, 7.4L Vortec 454, 6.5L diesel
Most common Suburban 3500 era in used market
Cross-Reference Sister Vehicles and Chassis Family
- GMC Suburban 3500: Pre-2000 GMC badge-engineered with Chevy
- GMC Yukon XL: Post-2000 rename of GMC Suburban (but no 3500)
- Chevy/GMC C/K 3500 Pickup: Same chassis era, gas tank cross-reference applies
- 1-ton HD applications: Various GM HD vehicles same era
Discontinuation Context
Modern Suburban variant history:
- 1973-1999: 1500, 2500, and 3500 variants available
- 2000-2013: 1500 and 2500 only (3500 discontinued)
- 2014-present: 1500 only (2500 also discontinued 2013)
- Modern Suburban: 1500 half-ton only, focuses on personal luxury
Vehicle Compatibility
Vintage Suburban 3500 Era and Cross-Reference:
| Chevy Suburban 3500 1973-1991 | Round-body C/K era |
|---|---|
| Chevy Suburban 3500 1992-1999 | GMT400 era (most common) |
| Cross-Reference GMC Suburban 3500 | Pre-2000 sister vehicle |
| Cross-Reference Chevy C/K 3500 Pickup 1973-1999 | Same chassis fuel architecture |
| Cross-Reference GMC C/K 3500 Pickup 1973-1999 | Same chassis fuel architecture |
| NOT Compatible Suburban 2000+ | Suburban 3500 discontinued |
| NOT Compatible Suburban 1500 1973+ | Different tank size/configuration |
| NOT Compatible Suburban 2500 1992-2013 | Different HD tank specs |
| NOT Compatible GMC Yukon XL 2000+ | 1500 only, no 3500 equivalent |
| Multiple Capacities 30-42 Gallon | Specify at order |
| Single or Dual Tank Configurations | Specify at order |
Condition and Inspection
- No major damage verified dents not compromising capacity
- No leaks confirmed critical for fuel system safety
- No significant internal corrosion inspected via fuel sender opening
- No external rust especially salt-belt era vehicles
- Mounting strap surfaces intact tank hangs from straps
- Fuel sender mounting hole integrity no stripping or damage
Vent connections functional
Filler neck connection intact
- Suburban 3500 generation verified round-body or GMT400
- Configuration verified single or dual tank
Capacity verified
- Donor vehicle disclosed variant, year, engine, capacity, mileage
Cleaned of debris
- Packaged in crate for large tank shipping
For Chevy Suburban 3500 gas tank (rare 1-ton variant)
Two-generation Suburban 3500 coverage (round-body and GMT400)
Discontinuation context properly explained
Cross-reference GMC Suburban 3500 sister (pre-2000)
Cross-reference C/K 3500 pickup donors (same era)
GMC Yukon XL rename history documented (2000+ no 3500)
Multiple fuel capacity options (30-42 gallon)
Single and dual tank configurations supported
Engine compatibility (350/454/6.5 diesel/6.2 diesel)
No leaks verified
No major damage
Mounting strap surfaces intact
Internal corrosion inspected
Authentic GM OEM
Vintage Chevy/GMC HD specialist support
Specialty vintage sourcing capability
Crate packaging for fuel tank shipping
15 day replacement warranty
Cornelius Holbrook-Worthington –
Replacing the gas tank on my 1997 Chevy Suburban 3500 with the 7.4L big block (the rare HD configuration). Vaz confirmed the GMT400 generation and 7.4L engine specifically and sourced a tested tank from a 1996 GMC C/K 3500 pickup donor (cross-reference within same chassis era since the C/K 3500 pickup shared fuel architecture with Suburban 3500). No leaks verified, no significant corrosion despite the age. The cross-reference flexibility (Suburban 3500, GMC sister, C/K 3500 pickup) significantly
Tatiana Drobyshchenko –
Bought gas tank for my 1985 Chevy Suburban 3500 with 350 small block (round-body era). Vaz emphasized the variant identification since the 1500/2500/3500 distinctions are critical for these older trucks. Sourced from a 1986 GMC Suburban 3500 donor (pre-2000 sister vehicle, before GMC rebranded as Yukon XL). One star off because the tank arrived with some surface rust that wasn’t fully disclosed – cleaned up but required more prep than expected before installation. The discontinuation history (35