Help, need some info on SAE 4 tail housing and 24V starter/grid heater

[Digger]

We want to swap the tail housing from a R2.8 / ISF2.8 for the SAE 4 patterned tail housing from a QSF2.8.

- Does anyone know the stock Cummins P/Ns for the tail housing and the matching SAE flywheel?
- Does anyone know whether the flywheel is SAE 6 or 7?
- The starter with the SAE 4 tail housing is on the RH side of the engine. Does anyone know if it's the same starter the R2.8 uses?
- Is there a 24V option for the starter and grid heater?

Thanks. We've been trying for weeks to get some info from Cummins and I guess they are short staffed like everyone else because no one is returning calls or emails. Frustrating times these days, so I'm hoping someone here might have some answers.

[Sanders]

Hate to hear you're not getting a response. What I can find in my moonlighting:

1. Does anyone know the stock Cummins P/Ns for the tail housing and the matching SAE flywheel?
   1. SAE4 flywheel housing option is FH9975

      1. 				qty
         	1	3900632	Hexagon Flange Head Cap Screw	3	M8 X 1.25 X 35.
         	2	3902116	Hexagon Flange Head Cap Screw	7	M12 X 1.75 X 50.
         	3	3910248	O-Ring Plug	1
         	4	3910260	O-Ring Seal	1
         	5	5265267	Oil Seal	1
         		5304509	Flywheel Housing	1
         	6	3900068	Ring Dowel	2
         	7	5304510	Flywheel Housing	1

2. Does anyone know whether the flywheel is SAE 6 or 7?
   1. Not sure... The options to inquire about are:
      1. FW90288
      2. FW90434
      3. FW90707
      4. FW9544
3. The starter with the SAE 4 tail housing is on the RH side of the engine. Does anyone know if it's the same starter the R2.8 uses?
   1. Here is a breakdown of the R2.8 starter characteristics/PN and all of the QSF starter options I could find:

      1. R2.8 Starter	QSF 24v Starter	QSF 12v	QSF 12v	QSF 12V	QSF 12v
         Option ST9672	Option ST9747	Option ST9801	Option ST9731	Option ST9668	Option ST9647
         PN 5310341	PN 5349330	PN 5449610	PN 5344876	PN 5363153	PN 5302289
         PINION DIAMETRAL PITCH: 8/10	PINION DIAMETRAL PITCH: 8/10	PINION DIAMETRAL PITCH: 8/10	PINION DIAMETRAL PITCH: 8/10	PINION DIAMETRAL PITCH: 8/10	PINION DIAMETRAL PITCH: 8/10
         PINION GEAR OD (MM): 40	PINION GEAR OD (MM): 40	PINION GEAR OD (MM): 40	PINION GEAR OD (MM): 40	PINION GEAR OD (MM): 40	PINION GEAR OD (MM): 40
         PINION GEAR OFFSET (MM): 0	PINION GEAR OFFSET (MM): 0	PINION GEAR OFFSET (MM): 0	PINION GEAR OFFSET (MM): 0	PINION GEAR OFFSET (MM): 0	PINION GEAR OFFSET (MM): 0
         PINION DRIVE TYPE:	PINION DRIVE TYPE: PGR (PLANETARY GEAR	PINION DRIVE TYPE: PGR (PLANETARY GEAR	PINION DRIVE TYPE: PGR (PLANETARY GEAR	PINION DRIVE TYPE:	PINION DRIVE TYPE: PGR (PLANETARY GEAR
         PGR (PLANETARY GEAR REDUCED)	REDUCED)	REDUCED)	REDUCED)	PGR (PLANETARY GEAR REDUCED)	REDUCED)
         MOUNTING FLANGE TYPE:	MOUNTING FLANGE TYPE:	MOUNTING FLANGE TYPE:	MOUNTING FLANGE TYPE:	MOUNTING FLANGE TYPE:	MOUNTING FLANGE TYPE:
         SAE#1 - 3 BOLT, 90 DEGREES	SAE#1 - 3 BOLT, 90 DEGREES	SAE#1 - 3 BOLT, 90 DEGREES	SAE#1 - 3 BOLT, 90 DEGREES	SAE#1 - 3 BOLT, 90 DEGREES	SAE#1 - 3 BOLT, 90 DEGREES
         FRAME SIZE DIAMETER: 81.9	FRAME SIZE DIAMETER: 81	FRAME SIZE DIAMETER: 81.9		FRAME SIZE DIAMETER: 81.9	FRAME SIZE DIAMETER: 81.9
         PILOT DIAMETER: 88.9	PILOT DIAMETER: 88.9	PILOT DIAMETER: 88.9	PILOT DIAMETER: 88.9	PILOT DIAMETER: 88.9	PILOT DIAMETER: 88.9
         STARTER MOTOR LENGTH: 241.5	STARTER MOTOR LENGTH: 242	STARTER MOTOR LENGTH: 241.5	STARTER MOTOR LENGTH: 238MAX	STARTER MOTOR LENGTH: 241.5	STARTER MOTOR LENGTH: 241.5
         STARTER MOTOR ENGINE MOUNTED ANGLE:	STARTER MOTOR ENGINE MOUNTED ANGLE(DEG):	STARTER MOTOR ENGINE MOUNTED ANGLE:		STARTER MOTOR ENGINE MOUNTED ANGLE:	STARTER MOTOR ENGINE MOUNTED ANGLE:
         250+/-20 DEG	105+/-15	87+/-20 DEG		250+/-20 DEG	87+/-20 DEG
         REMOVAL LENGTH: 66.5	REMOVAL LENGTH: 57	SEALING PROVISION: YES		SEALING PROVISION: NO	SEALING PROVISION: NO
         MANUFACTURER: DIXIE	MANUFACTURER: PRESTOLITE	REMOVAL LENGTH: 66.5	REMOVAL LENGTH: 57	REMOVAL LENGTH: 66.5	REMOVAL LENGTH: 66.5
         MODEL: S11-25102	MODEL: SM81R3001	MANUFACTURER: DIXIE	MANUFACTURER: PRESTOLITE	MANUFACTURER: DIXIE	MANUFACTURER: DIXIE
         VOLTAGE: 12 V	VOLTAGE: 24 V	MODEL: S11-30110	MODEL: M81R2504	MODEL: S11-25103	MODEL: S11-30101
         KILOWATT RATING: 2.5	KILOWATT RATING: 3.5KW	VOLTAGE: 12 V	VOLTAGE: 12 V	VOLTAGE: 12 V	VOLTAGE: 12 V
         UNIQUE CHARACTERISTICS: APLLIED TO -41 DEGREE	UNIQUE CHARACTERISTICS: 24V	KILOWATT RATING: 3KW	KILOWATT RATING: [email protected]	KILOWATT RATING: 2.5	KILOWATT RATING: 3KW
         LOW TEMPERATURE STARTING		NAMEPLATE BRAND: DIXIE		NAMEPLATE BRAND: DIXIE	NAMEPLATE BRAND: DIXIE
         		UNIQUE CHARACTERISTICS: 12V		UNIQUE CHARACTERISTICS: N/A	UNIQUE CHARACTERISTICS: 12V
         				CONNECTOR SWITCH TYPE: SPADE
         				DRIVE MODE:ELECTROMAGNETIC

4. Is there a 24V option for the starter and grid heater?
   1. 24v starter option number is ST9747 and the characteristics noted are above
   2. 24v grid heater is part of intake option IM9327, PN is 5536524 but I'm not sure if that same heater element would fit in R2.8 intake or not.

[Digger]

Huge thanks man! This is great info!