Operators, be careful while ordering that alternator belt for your tanker trailer. Older model tanker trailers use a different belt than the newer models. That’s because they have different-sized alternator pulleys.
The NSN currently listed in TM 9-2330-339-23P (Dec 15) for the alternator belt used in the M967A1, M969A1 and M969A2 models is incorrect. If you order that belt, you’ll get a 30-inch belt. It’ll fit, but you won’t be able to tighten it enough to meet the tension requirements. That’s because it should be a 28-inch belt!
DA 2028s have been submitted to fix the NSNs in the TM, so jot this down until the TM is updated.
Schematic showing the alternator belt
Here’s a complete list of M967 and M969 alternator belt NSNs:
| Model |
Alternator Belt
NSN 3030- |
| M967A1 |
00-822-2411 |
| M967A1P1 |
00-822-2411 |
| M969A1 |
00-822-2411 |
| M969A1P1 |
00-822-2411 |
| M969A2 |
00-822-2411 |
| M969A2P1 |
00-822-2411 |
| M967A2 |
01-457-8833 |
| M967A2P1 |
01-457-8833 |
| M969A3 |
01-457-8833 |
| M969A3P1 |
01-457-8833 |
Need a Cooling Fan Belt?
To get the cooling fan belt for any model that’s listed in the table, use NSN 3030-01-457-8833, PN ED0024400340-S. By the way, that NSN also covers the belts for the earlier models of fuel tankers that have the Lombardini engine installed.
Schematic showing the cooling fan belt