Blue Bird School Bus Fuel Tank: How to Identify the Right Replacement by OEM Number
- 8 hours ago
- 3 min read
A Blue Bird school bus fuel tank is identified by its OEM number, not by year or model. Two buses that look identical can take different tanks, and a tank that bolts up on one chassis can sit wrong on the next. The OEM number is the one piece of information that confirms the right Blue Bird school bus fuel tank before ordering. For inspection criteria on a tank that may be failing, see the fuel tank inspection guide.
Why the OEM Number Matters More Than the Model Year
Blue Bird fuel tanks differ in ways that a catalog year does not capture. Mounting bracket position, strap spacing, fill neck location, and sending unit configuration all change across chassis and years. A tank ordered by model year alone comes back wrong often enough that year is not a safe identifier on its own.
The OEM number points to one specific tank configuration. It removes the guesswork that a year range introduces when that range covers several tank variants.
Where to Find the OEM Number on a Blue Bird School Bus Fuel Tank
Stamped or tagged on the existing tank, often near a mounting bracket or on the fill side
Listed on the chassis paperwork or original build sheet
Cross-referenced from the old part number if the tank was replaced before
If the tank is corroded past reading, the chassis data plate and the sending unit help narrow it down.
How Many Gallons Does a Blue Bird Fuel Tank Hold?
Capacity varies by chassis and body style, and this is where orders go wrong. Two tanks of the same nominal gallon capacity can have different mounting and fill neck positions. Capacity indicates roughly how much fuel the bus carries. It does not confirm whether a tank will mount. The OEM number does.
Blue Bird Fuel Tanks and Their OEM Cross-References
Auto-jet stocks replacement fuel tanks for Blue Bird school buses, including configurations distributors no longer list. Common tanks and the OEM numbers they cross-reference:
BBGT5138 cross-references OEM numbers including 10015138, 10063380, 10058732, 10049444
BBGT8146 cross-references OEM numbers including 0068146, 10019906, 10049447, 1667690
BBGT6000 cross-references OEM numbers including 10015137, 10058060, 10058860, 10049441
BBGT7342 confirm by OEM number
BBGT7682 confirm by OEM number
An OEM number that appears in this list identifies the tank. A number that does not appear is still worth checking, since unpublished cross-references and older Blue Bird tanks are available by request.
What to Confirm Before Ordering a Blue Bird Fuel Tank
OEM number from the tank or chassis paperwork (the primary identifier)
Chassis body style and model year as supporting detail
Diesel or gasoline configuration
Sending unit requirement if it is being replaced as well
Auto-jet stocks Blue Bird school bus fuel tanks and cross-references OEM numbers to confirm fitment before anything ships.
Call 800-247-5391 or get a quote with the OEM number and chassis details.
Frequently Asked Questions
How do I identify the right Blue Bird school bus fuel tank?
The most reliable way is the OEM number stamped on the existing tank or listed on the chassis paperwork. Blue Bird fuel tanks vary by chassis, model year, and configuration, and visually similar tanks are often not interchangeable. The OEM number confirms the correct replacement before ordering.
How many gallons does a Blue Bird school bus fuel tank hold?
Capacity varies by chassis, body style, and model year. Capacity alone does not confirm fitment because tanks of the same nominal capacity can differ in mounting, strap spacing, and fill neck position. The OEM number is more reliable than capacity for confirming a replacement.
Are Blue Bird fuel tanks interchangeable between models?
Not reliably. Mounting bracket position, strap spacing, fill neck location, and sending unit configuration differ across Blue Bird chassis and years. Matching the OEM number is the only dependable way to confirm a replacement tank will fit.