Description
Galvanized steel flexible exhaust tubing, 5 in. (127 mm) ID by 25 ft (7.6 m) roll, for cutting to length on heavy-duty truck and equipment exhaust runs. Equivalent to Donaldson P226157, Walker 40012, Nelson 89715K, and Grand Rock GF5300. Standard galvanized wall (~0.015 in.) construction stands up to wet-stack moisture, road salt, and the temperatures seen downstream of the muffler / DPF on Class 7-8 truck exhausts.
Specifications
| Part Type | Galvanized Flexible Exhaust Tubing (bulk roll) |
|---|---|
| Inside Diameter | 5 in. (127 mm) |
| Length | 25 ft (7.6 m) roll |
| Material | Galvanized steel |
| Wall Thickness | ~0.015 in. |
| Construction | Interlocked spiral-wound flex (cut to length) |
Cross References
This bulk flex pipe matches or is interchangeable with the following part numbers:
- Donaldson: P226157
- Walker Manufacturing: 40012, 40026
- Nelson: 89715K
- Grand Rock: G155300, GF5300
- Heavy Duty MFG: 16500M
- Stemco: 2130550, 2132550, 2140550
- NAPA: EXH 40012
- Riker: FT500, FTG50015, FTG5001925
- Acrafit: 50300G
- Dynaflex: 51500
- Ford: 9575P208318
Applications
This 5 in. galvanized flex tubing is used as bulk replacement on heavy-duty and medium-duty exhaust systems, including:
- Class 7-8 on-highway tractors using a 5 in. exhaust system (Freightliner, Kenworth, Peterbilt, International, Volvo, Mack, Western Star)
- Vocational and severe-service trucks with 5 in. flex sections between manifold/turbo and stack or muffler
- Heavy off-highway and ag equipment using a 5 in. exhaust pipe size
Cut the roll to the length needed; clamp with band clamps rated for the application. Verify pipe ID, clamp size, and intended service temperature before installation.









