bus motor home - radiator tanks and parts - Bolt on Top Tanks - bus
![BS1097 BS1097](/upload/BS1097.jpg)
Header: 15.75" X 6.25"
24 Bolt Holes
Cross Flow Tank
2.50" diameter hose connection 5.25" from the edge of the tank to the center of the hose connection
1/4" NPT flange on each end
![BS1819 BS1819](/upload/BS1819.jpg)
Header: 23.00" x 7.25"
32 Bolt Holes
Bus Top Tank
This tank has 2 - 2 1/4" diameter hose connections, 2 - 1/4" NPT flanges for drains, a 3/4" NPT flange for a sight glass, and there is a baffle that runs across the center of the inside of the tank.
Bottom Tank is a blank tank
![BS2012 BS2012](/upload/BS2012.jpg)
Header: 27.50" x 3.00"
Top Tank - 2.00" diameter hose connection
Pair of pin mounts
1/4" NPT flange for an expansion tube
4 - 1/4" NC threaded blocks on the grill side of the tank
Bottom Tank
Oil cooler @ 18.00" centers
2.00" diameter hose connection
1/4" NPT flange for a drain
Pair of pin mounts
4 - 1/4" NC threaded nuts along the grill side of the tank
Note: same as tanks #BS2014CK but 2.00" longer.
![BS3207 BS3207](/upload/BS3207.jpg)
Header: 30.87" x 8.37"
40 Bolt Holes
Bus Top Tank
This low profile tank (1.62") has a 2.75" diameter hose connection 3.12" from the edge of the tank to the center of the hose connection
3/8" NPT flange in the hose connection for either a drain or an expansion tube.
Shown here with the matching bottom tank
![BS4307 BS4307](/upload/BS4307.jpg)
Header: 26.50" x 7.50"
34 Bolt holes
Cross flow tanks
2.00" diameter hose connection(3.00" long) 2.50" from the edge of the tank TO the center of the hose connection
An angle bracket offset to the grill side of the tank with a pair of 1/2" slots at 14.87" centers
![BS4408 BS4408](/upload/BS4408.jpg)
Header: 21.50" x 7.87"
34 Bolt Holes
Nova Bus End Tank
2.25" diameter hose connection
1/4" NPT flange used for a drain
![BS6028 BS6028](/upload/BS6028.jpg)
Header: 25.50" x 7.62"
34 Bolt Holes
Cross Flow Tank
2.50" diameter hose connection
1/4" NPT flange
3 brackets for mounting placed as shown
Top Tank is A and Bottom Tank is B
![BS6308 BS6308](/upload/BS6308.jpg)
Header: 17.62" x 8.37"
28 Bolt Holes
Cross Flow Tank
2.50" diameter hose connection
2 - 1/4" NPT fIittings - one on each end
![BS740 BS740](/upload/BS740_2.jpg)
Header: 33.75" x 6.25"
42 Bolt Holes
Bus Top Tank
One bolt-on type filler with 2 - 3/8" N.C. threads
2 - 3/8" N.C. threaded holes next to filler opening
2 - 1/4" N.P.T. fittings
NOTE: Matches tank #BS 741 & #BS 7411
![BS7405 BS7405](/upload/BS7405.jpg)
Header: 33.00" x 6.62"
42 Bolt Holes
Cross Flow Tank
2.50" diameter hose connection facing straight out to the engine
1/4" NPT flange on the end
![BS7406 BS7406](/upload/BS7406.jpg)
Header: 33.00" x 6.62"
42 Bolt Holes
Cross Flow Tank
2.50" diameter hose connection on a 90 degree angle
1/4" NPT flange on the end
![BS7407 BS7407](/upload/BS7407.jpg)
Header: 30.37" x 7.00"
42 Bolt Holes
Cross Flow Tank
2.50" diameter hose connection
1/4" NPT flange facing the engine
![BS7408 BS7408](/upload/BS7408_2.jpg)
Header: 30.37" x 7.00"
42 Bolt Holes
Cross Flow Tank
Mirror image of tank # BS 7407
![BS7409 BS7409](/upload/BS7409.jpg)
Header: 30.37" x 7.00"
42 Bolt Holes
Cross Flow Tank
2.50" diameter hose connection coming straight out
1/4" NPT flange on each end
![BS7413 BS7413](/upload/BS7413.jpg)
Header: 31.37" x 7.00"
40 Bolt Holes
Cross Flow Tank
2.50" diameter hose connection
3/8" NPT flange on each end of the tank
![BS7417 BS7417](/upload/BS7417.jpg)
Header: 30.00" x 5.75"
40 Bolt Holes
Cross Flow Tank
2.00" diameter hose connection
1/4" NPT flange and a shutter flange
Matches tank # BS 7418
![BS7418 BS7418](/upload/BS7418.jpg)
Header: 30.00" x 5.75"
40 Bolt Holes
Cross Flow Tank
2.00" diameter hose connection
1/4" NPT flange
Matches Tank # BS7417
![BS7419 BS7419](/upload/BS7419.jpg)
Header: 27.12" x 7.62"
38 Bolt Holes
Cross Flow Tank
2.50" diameter hose connection coming out of the top of the tank
1/4" NPT flange
![BS742 BS742](/upload/BS742_2.jpg)
Header: 42.25" x 6.37"
50 Bolt Holes
Bus Top Tank
One bolt-on type filler with 2 - 3/8" N.C. threads
2 - 3/8" N.C. threaded holes next to filler opening
2 - 1/4" N.P.T. fittings
One deflector plate under filler
NOTE: Matches tank #BS743
![BS7421 BS7421](/upload/BS7421.jpg)
Header: 33.87" x 6.37"
42 Bolt Holes
Cross Flow Tank
2.75" diameter hose connection 4.50" in fom the end of the tank to the center of the connection
1/4" NPT flange at the end of the tank
Tank slopes at an angle on the grill side
![BS7423 BS7423](/upload/BS7423.jpg)
Header: 27.12" x 7.62"
38 Bolt Holes
Cross Flow Tank
1.75" diameter hose connection
1/4" NPT flange on top of tank
Matches tank # BS7424
![BS7424 BS7424](/upload/BS7424.jpg)
Header: 27.12" x 7.62"
38 Bolt Holes
Eldorado Bus Cross Flow
1.75" diameter hose connection
1/4" NPT flange on top of the tank
Matches tank # BS7423
![BS7432 BS7432](/upload/BS7432.jpg)
Header: 18.50" x 8.50"
28 Bolt Holes
Cross Flow Tank
2.50" diameter hose connection
2 - 1/4" NPT flanges - one on each end
![BS7433 BS7433](/upload/BS7433.jpg)
Header: 35.00" x 7.00"
44 Bolt Holes
Cross Flow Tank
2.75" diameter hose connection 5.25" from edge of the tank to the center of the hose connection
1/4" NPT flanges on either end of the tank
Grill side of the tank is sloped inward
![BS7435 BS7435](/upload/BS7435.jpg)
Header: 20.25" x 10.00"
32 Bolt Holes
Cross Flow Tank
2.50" diameter hose connection 5.25" from the edge of the tank to the center of the hose connection
Baffle seperating left from right
1/4" NPT flange on end of the tank
![BS7436 BS7436](/upload/BS7436.jpg)
Header: 27.12" x 7.62"
38 Bolt Holes
Cross Flow Tank
Basically a blank tank except for the 1/4" NPT flange for an expansion tube
Matches tank # BS7416
![BS7437 BS7437](/upload/BS7437.jpg)
Header: 15.87" x 7.00"
24 Bolt Holes
Cross Flow Tank
2.50" diameter hose connection 5.12" from the edge of the tank to the center of the hose connection
1/4" NPT flange on end of tank
![BS7438 BS7438](/upload/BS7438.jpg)
Header: 35.00" x 7.00"
44 Bolt Holes
Cross Flow Tank
2.75" diameter hose connection 5.50" from the edge of the tank to the center of the hose connection
The grill side of the tank slopes inward
![BS744 BS744](/upload/BS744.jpg)
Header: 30.87" x 6.25"
36 Bolt Holes
Bus Top Tank
One bolt-on type filler with 2 - 3/8" N.C. threads
2 - 3/8" N.C. threaded holes next to filler opening
2 - 7/16' N.C. threaded holes at end of tank
3 - 5/16" N.C. threads along one side of tank
2 blocks with 2 - 1/4" N.C. threads in each, on opposite side of tank.
Note: Matches tank #BS745
![BS746 BS746](/upload/BS746.jpg)
Header: 30.75" x 6.25
38 Bolt Holes
Bus Top Tank
This tank has a bolt-on type flange with 2 - 3/8" NC threaded holes
2 - 3/8" NC threaded holes next to filler opening, and 2 - 1/4" NPT flanges
Note: pairs with tank #BS747 & #BS7471
![BS748 BS748](/upload/BS748_2.jpg)
Header: 36.00" x 7.00"
46 Bolt Holes
Bus Top Tank
One bolt-on type filler with 2 - 3/8" N.C. threads
2 - 3/8" N.C. threaded holes next to filler opening
1 - 1/4" N.P.T. fitting on end of tank
NOTE: Matches tank #BS749
![BS750 BS750](/upload/BS750.jpg)
Header: 33.12" x 6.25"
42 Bolt Holes
Bus Top Tank
This tank has a bolt-on flange with 2 - 7/16" NC threads
3/8" NPT flange
Angle bracket in the center with a 1/2" diameter hole
Note: this tank pairs with tank #BS751
![BS7512 BS7512](/upload/BS7512.jpg)
Header: 33.12" x 6.50"
48 Bolt Holes
Bus Top Tank
This MCI top tank has a 2 1/4" diameter hose connection
Bracket and 2 - 1/4" NPT flanges on the top of the tank
Baffle across the width of the tank 11 1/2" from the end of the tank
Note: This tank pairs with bottom tank #BS7511
![BS753 BS753](/upload/BS753.jpg)
Header: 35.00" X 7.00"
44 Bolt Holes
Cross Flow Tank
2.50" diameter hose connection 4.00" from the edge of the tank to the center of the hose connection
1/4" flange on one end of the tank
![BS7535 BS7535](/upload/BS7535.jpg)
Header: 20.37" x 7.25"
32 Bolt Holes
Thomas Bus Cross Flow Tank
Identical to tank # BS7536 except it has a 1/4" NPT flange instead of 3/8" expansion tube and no oil cooler
Matching tank # BS7536
![BS7536 BS7536](/upload/BS7535_2.jpg)
Header: 20.37" x 7.25"
32 Bolt Holes
Thomas Bus Cross Flow Tank
2.00" diameter hose connection 3.75" from the edge of the tank to the center of the hose connection
1/4" NPT flange on the end of the tank for a drain
3/8" diameter expansion tube
16 plate 10.00" oil cooler center to center
Matching tank #BS7535
![BS754 BS754](/upload/BS754.jpg)
Header: 35.00" x 7.00"
44 Bolt Holes
Cross Flow Tank
2.50" diameter hose connection that is 9.00" from the edge of the tank to the center of the hose connection
1/4" NPT flange on end of tank
Bolt pattern same as # BS7433
![BS9177 BS9177](/upload/BS9177.jpg)
Header: 20.12" x 7.62"
30 Bolt Holes
Orion Bus Top Tank
This tank has a 2.50" diameter hose connection, and a 1/4" NPT flange for an expansion fitting.
Note: this tank mates with bottom tank #BS091708B.