Difference between Perkins 354 372.

1070BK · Oct 25, 2015

Servicing my 750 with a 354 today reminded me that previous 750's I ran had 372's. Wondering what the differences are.

ptfarmer · Oct 26, 2015

The cylinder bore on a 372 is .100" bigger than the 354.

Dieseltech · Oct 26, 2015

354 had 3 7/8, {3.875} bore while the 372 used 3 15/16 {3.9375} bore, .062 larger than the 354. 372 used 9MM plungers in the CAV DPA injection pump. 354 turbo engines used 10MM plungers, or the late pumps had 4-7MM plunger head, non turbo engines used either 7.5 or 9MM plungers. Never saw a factory 372 turbo engine but M&W gear had a kit for the MF 750 combine. Dealer I worked for the MF service rep was not crazy about those kits but did admit to helping the low power of the 750 in heavy crops.

J. Schwiebert · Oct 26, 2015

Like diesel tech said the bore size. There was a former Perkins official who worked out of their Detroit office who took a job with Owens College in their new diesel program that the 372 was only used in combines.

Difference between Perkins 354 372.

1070BK

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ptfarmer

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Dieseltech

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J. Schwiebert

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