Understanding your Cummins Marine engine performance curve can help you improve performance without wasting precious fuel. Every engine has a unique set of performance curves, so it’s important to make sure you have the correct curves, including the proper Horse Power, CPL designation and rating classification.

TypeFile NameHorsepowerRated RPMCPLRatingCurve DateCurve NumberSize

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4BTA 25030002197HOAug 04M 90231125.6k

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4BT 15028000741INTMay 99M 90196101.1k

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4B 6422000591CONTMay 99M 910162.1k

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4B 7625000591MCDMay 99M 9009 C97k

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4B 8028000721INTMay 99M 911497.4k

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6BTA (JWAC) 22025002205MCDMar 97FR 90214135.1k

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6BTA (JWAC) 22525002205MCDApr 01M 9081566k

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6BTA (JWAC) 26026002956INTNov 00M 9080792k

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6BTA (JWAC) 27026002956HONov 00M 9080691.5k

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6BTA (JWAC) 27026002956HOSept 00M 9080654.7k

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6BTA 25026001613MCDMay 99M 972063.3k

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6BTA 27026002956HOMay 06M 90806187.1k

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6BTA 30028001613LCMay 95FR 9021467.1k

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6BTA 30028001613LDMay 95M 9647 D67.1k

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6BTA 33028001975HONov 00M 9020852.9k

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6BTA 37030002208HODec 00M 9003453k

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6BTA 37030008457HOAug 03M 91260131.7k

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6BT 18025002891MCDAug 04M 09762100.7k

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6BT 18025002891MCDNov 00M 9076265.6k

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6BT 21026002891INTNov 00M 9076165.8k

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6BT 22026008206HOAug 04M 90760125.1k

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6B 12028000791INTMay 99M 915298.3k

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6CTA (JWAC) 25518002833CONAug 04M 9072684.4k

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6CTA 480CE 48026002960HOOct 02M 90821115.5k

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6CTA M2 42026001929HOApr 94M 9000852.9k

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6CTA 35025002172INTJul 99M 9021661.4k

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6CTA 35025008089INTAug 04M 9021691.9k

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6CTA 43026002172HODec 00M 9021520.2k

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6CTA 43026002172INTM 9041319.3k

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6CTA 43026008089INTApr 01M 9041319.2k

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6CTA 43026008089INTAug 04M 9041390k

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KTA 19 M4 70021002356MCDMar 02M 427886k

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KTA 19 60018004150CDJun 03M 4197127.9k

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KTA 19 64018004150HDJun 03M 4223129.6k

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KTA 38 90016002915CONApr 01M 621871.9k

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KTA 38 110018002915HDDec 04M 6216294.1k

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N14 36018002861CONNov 99M 1017142.9k

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QSB 5 9 23026008464HDMay 10M 9136743.5k

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QSB 5 9 23026008464HOMay 10M 9137043.5k

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QSB 5 9 23030008464HOMay 10M 9203342.9k

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QSB 5 9 23030008464INTMay 10M 9200942.9k

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QSB 5 9 30526008464HOMay 10M 9136943.2k

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QSB 5 9 30526008464MCDMay 10M 9136544.1k

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QSB 5 9 33028008464HOMay 10M 9136643.5k

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QSB 5 9 35528008464HOMay 10M 9136847.9k

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QSB 5 9 35528008464INTMay 10M 9129843.4k

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QSB 5 9 38030008464HOMay 10M 9136442.9k

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QSB 5 9 42530001860HOMay 10M 9326278k

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QSB 5 9 42530001860INTMay 10M 9326347.7k

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QSB 5 9 42530008732HOMay 10M 9163243k

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QSB 5 9 44034001860HOMay 10M 9228443k

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QSB 5 9 48034001860HOMay 10M 9213242.8k

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QSB 6 7 Performance Curve & CPL's 290.5k

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QSB 6 7 SL 42530004699INTJan 2019M 9642684.6k

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QSB 6 7 23030003887INTMay 13M 9413576.7k

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QSB 6 7 25026003887HDFeb 2019M 9396081k

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QSB 6 7 25026003887HDMay 13M 9396076.5k

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QSB 6 7 25026003887HD KCAug 13M 9396296.6k

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QSB 6 7 25026003887HOMay 13M 9385878.4k

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QSB 6 7 30126003887MCDFeb 2019M 9396182.6k

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QSB 6 7 30526003887HOApr 13M 9395980.7k

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QSB 6 7 30526003887MDMay 13M 9396177.3k

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QSB 6 7 30526003887MD KCAug 13M 9396395.5k

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QSB 6 7 35028004191INTNov 2018M 94375184.6k

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QSB 6 7 3503000HONov 2018M 94133190.9k

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QSB 6 7 35528004191INTOct 13M 9437582.1k

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QSB 6 7 35530004191HOOct 13M 9413384.1k

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QSB 6 7 35530004699HOJul 14M 94979203.3k

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QSB 6 7 37530004191INTNov 2018M 94132191.3k

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QSB 6 7 38030004191HOOct 13M 9413186.1k

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QSB 6 7 38030004191INTOct 13M 9413283.9k

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QSB 6 7 38030004699HOJul 14M 94978203.9k

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QSB 6 7 42530004191HOOct 13M 9412985.9k

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QSB 6 7 42530004191IDSep 15M 94130206k

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QSB 6 7 42530004191INTNov 2018M 94130191.3k

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QSB 6 7 42530004191INTOct 13M 9413083.4k

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QSB 6 7 42530004699HOJul 14M 94977203.7k

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QSB 6 7 48030004191IDJan 15M 95035203.9k

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QSB 6 7 48030004191INTNov 2018M 95035187.4k

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QSB 6 7 48033004191HOOct 13M 9412783.8k

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QSB 6 7 48033004191LDNov 2018M 94128190.1k

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QSB 6 7 55033004191HOMay 2019M 9412591.6k

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QSB 6 7 55033004191HOOct 13M 9412583.6k

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QSB 6 7 55033004191LDJan 2020M 94126174.4k

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QSC 8 3 50026000906HOMay 10M 9204342.7k

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QSC 8 3 54026008017HODec 04M 9099688.7k

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QSC 8 3 55030000906HOMay 10M 9193943.4k

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QSC 8 3 60030000906HOMay 10M 9193743k

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QSC 8 3 60030005234LDJun 2021M 96718159.6k

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QSL 9 KC 29018004254CONOct 13M 9451073.6k

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QSL 9 KC 35518004254HDOct 13M 9450872.8k

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QSL 9 KC 41021004254MCDOct 13M 9434975.7k

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QSL 9 29018004254CONOct 13M 9450972.7k

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QSL 9 35518004254HDOct 13M 9450773.3k

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QSL 9 41021004254HOOct 13M 9450574.9k

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QSL 9 41021004254MCDOct 13M 9450675.4k

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QSL 9 45021004254MCDFeb 18M 9648672.7k

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QSL9 45021004254MCDMar 2019M 96486123.6k

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QSM (WET) 30018008590CONMay 10M 2004743.3k

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QSM (WET) 30018008590CONMay 10M 2005143.3k

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QSM (WET) 35518004334CONOct 16M 20777161.3k

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QSM (WET) 35518008590CONMay 10M 2004643.4k

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QSM (WET) 35518008590HOMay 10M 2005043.4k

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QSM (WET) 40521008590HDHD May 10M 2004543.6k

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QSM (WET) 40521008590HOMay 10M 2004943.6k

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QSM (WET) 45521008590HOMay 10M 2004843.8k

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QSM (WET) 45521008590MCDMay 10M 2003643.8k

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QSM11 705-71525001794LDNov 2018M 20573181.8k

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QSM Ratings and CPLs 9.5k

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QSM 53523008364HOOCT 31M 2969113.5k

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QSM 60223008753HOMay 10M 2009443k

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QSM 60223008753INTMay 10M 2010543.1k

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QSM 63623008753HOMay 10M 2010743.1k

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QSM 66123008753HOMay 10M 2009343k

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QSM 71523008753HOMay 10M 2014142.9k

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QSM 71525001794HOMay 10M 2014142.9k