Initial 5000 mile filter change intervals are required for New, ReTran®, and Overhauled models. To see how your model is affected, refer to the Initial Filter Change Interval Recommendation Chart.

For 5000, 6000, 8000, and 9000 Product Family fluid and filter change interval recommendations, see Service Tip #1098

Pick-up truck owners should refer to the recommendations in their Owner's Manual.

STEP 1 — Select Your Model below.

Allison Electric Drives™ EP 40/50 System™

	1000 and 2000 Product Families (1000, 2000, 2400™ Series)
	3000 Product Families (MD 3000, B 300, B 400, T 200, T 300)
	4000 Product Families (HD 4000, B 500, T 400, T 500)
	AT Series
	MT Series
	HT Series