Bottom / Lower Radiator Hose for 4x4 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

badpeanut · 05-16-2011, 11:25 PM

My local auto parts store does not list a lower radiator hose for my '71 4x4 w/350. Best they can do is Gates 20694 for a two-wheel drive. Due to the setback of the engine on the 4x4 the fit doesn't look like it will be as good as I'd like. Is there a better fitting option for 4x4?

71stroker · 05-17-2011, 03:58 AM

Do you have a napa around you? Here are some napa part numbers. I just put a #7463 on my 70 4x4 blazer and it fit great. If that doesnt work try #7368 or #7459 I had them written down also. I always have better luck telling them its for a 72 for some reason.

badpeanut · 05-17-2011, 07:50 AM

Quote:

Originally Posted by 71stroker

Do you have a napa around you? Here are some napa part numbers. I just put a #7463 on my 70 4x4 blazer and it fit great. If that doesnt work try #7368 or #7459 I had them written down also. I always have better luck telling them its for a 72 for some reason.

Thanks!

My Napa partsman says a #7463 is equivalent to a Gates 20694. The Gates 20694 doesn't match the old hose currently on my Blazer for bends, but sounds like it will work based on your experience.

71stroker · 05-17-2011, 07:28 PM

I went to napa online out of curiosity and it confused me more. I checked various 69-72 2 and 4 wheel drive trucks, blazers and burbs and came up with #7293 as listed for all of them.
They listed that #7463 I gave you as a cut to fit for 2wd, but it went on my 4x4 blazer without cutting it so IDK.
I started with a Good Year part #60751 and napa cross cross referenced it to that #7463 so Im not sure what application the computer said.

badpeanut · 05-18-2011, 07:37 AM

Interesting...

The Napa #7293 doesn't appear to have the 45 degree bend at the radiator.

sdailey · 05-18-2011, 10:09 AM

Look at a Gates #20842. I'm running one on my K10 with the engine mounted in the rear position.

badpeanut · 05-18-2011, 06:55 PM

Quote:

Originally Posted by sdailey

Look at a Gates #20842. I'm running one on my K10 with the engine mounted in the rear position.

According to the Napa website, this crosses to a #7580 which is an upper hose. Does it fit the bottom?

sdailey · 05-18-2011, 08:11 PM

It works for me.

Granted I'm running a serpentine setup if that matters.

**29od1** · 05-19-2011, 01:38 PM

I think the lower radiator hose referred to above is Gates 21941 (Dayco 71762). It's basically the lower hose for 1995 Chevy trucks with a 5.7l engine. It works well with the serpentine setups because it goes down and forward first instead of outward toward the bent part of the frame like the original ones.

Although the radiator side of the hose is about the same size as the original radiator outlet itself so you have to lube it up and work at it to get it to fit.

junglejim · 02-25-2014, 12:36 PM

ok I have tried several different lower radiator hoses and each time disappointed. I was reading on here yesterday and a member had a pn#d71244 made by dayco curved radiator hose. member states that the end that goes to the water pump is a little small and the end to the radiator is just right. member states that with a little effort and several cusswords he got it on. member states that the best thing it is the exact bends you need to clear the frame. I called our orilley's store and sure enough they had one and after work went to pick it up. after looking at the hose I said there is no way that will fit on the water pump. almost didn't take it home to try and the employee at the store told me to try it and could return if it didn't work. I am still amazed that it went on. I soaked it several times in hot water for about 5 minutes and would put my fingers in the hole and stretch it out and used joy dish soap on the neck of the water pump. I started it on the back and rotated it left and right till the back was on and then held it in place while using a small pick screw drivers with an 45 degree bend on it I pulled the front on and rotated it back and forth until bingo it was on. guys this hose is frisking awesome. it looks like it was made for this application. and yes the member was right after several cuss words I had it on. I have at least 3 inches of clearance on the frame with no weird pressure on the hose. I am so glad I tried this hose that problem is solved

05-16-2011, 11:25 PM	#1
badpeanut Not a bad nut after all.. Join Date: Dec 2000 Location: ND Posts: 1,759	Bottom / Lower Radiator Hose for 4x4 My local auto parts store does not list a lower radiator hose for my '71 4x4 w/350. Best they can do is Gates 20694 for a two-wheel drive. Due to the setback of the engine on the 4x4 the fit doesn't look like it will be as good as I'd like. Is there a better fitting option for 4x4? __________________ '05 Chevy 2500HD 4x4 '72 GMC LWB 4x2 driver '72 Chevy LWB 4x4 plow truck '71 Blazer 4x4 driver '70 GMC LWB trailer

05-17-2011, 07:28 PM	#4
71stroker Registered User Join Date: Apr 2008 Location: Burney, California Posts: 50	Re: Bottom / Lower Radiator Hose for 4x4 I went to napa online out of curiosity and it confused me more. I checked various 69-72 2 and 4 wheel drive trucks, blazers and burbs and came up with #7293 as listed for all of them. They listed that #7463 I gave you as a cut to fit for 2wd, but it went on my 4x4 blazer without cutting it so IDK. I started with a Good Year part #60751 and napa cross cross referenced it to that #7463 so Im not sure what application the computer said. __________________ 1971 K10 1/2 ton short fleetside, 4 in. lift, sm465/np205, 383 waiting to go in. 1972 K10 short fleetside converted to 3/4 ton, 12 in. lift, t.350/np205, sbc 350. 1970 C10 short fleetside, saginaw 3 spd, no motor. 1971 GMC 3/4 ton 2wd suburban parts truck.(gutted) 1970 GMC 1/2 ton 4wd suburban t.350/np205 no motor parts truck.

05-18-2011, 07:37 AM	#5
badpeanut Not a bad nut after all.. Join Date: Dec 2000 Location: ND Posts: 1,759	Re: Bottom / Lower Radiator Hose for 4x4 Interesting... The Napa #7293 doesn't appear to have the 45 degree bend at the radiator. __________________ '05 Chevy 2500HD 4x4 '72 GMC LWB 4x2 driver '72 Chevy LWB 4x4 plow truck '71 Blazer 4x4 driver '70 GMC LWB trailer

05-18-2011, 08:11 PM	#8
sdailey The Few, The Proud Join Date: Jun 2007 Location: Ball Ground, Georgia Posts: 1,830	Re: Bottom / Lower Radiator Hose for 4x4 It works for me. Granted I'm running a serpentine setup if that matters. Attached Images __________________ Shannon

05-19-2011, 01:38 PM	#9
29od1 Registered User Join Date: Oct 2006 Location: Wichita, Kansas Posts: 1,050	Re: Bottom / Lower Radiator Hose for 4x4 I think the lower radiator hose referred to above is Gates 21941 (Dayco 71762). It's basically the lower hose for 1995 Chevy trucks with a 5.7l engine. It works well with the serpentine setups because it goes down and forward first instead of outward toward the bent part of the frame like the original ones. Although the radiator side of the hose is about the same size as the original radiator outlet itself so you have to lube it up and work at it to get it to fit. Last edited by 29od1; 05-19-2011 at 01:54 PM.

05-17-2011, 03:58 AM	#2
71stroker Registered User Join Date: Apr 2008 Location: Burney, California Posts: 50	Re: Bottom / Lower Radiator Hose for 4x4 Do you have a napa around you? Here are some napa part numbers. I just put a #7463 on my 70 4x4 blazer and it fit great. If that doesnt work try #7368 or #7459 I had them written down also. I always have better luck telling them its for a 72 for some reason. __________________ 1971 K10 1/2 ton short fleetside, 4 in. lift, sm465/np205, 383 waiting to go in. 1972 K10 short fleetside converted to 3/4 ton, 12 in. lift, t.350/np205, sbc 350. 1970 C10 short fleetside, saginaw 3 spd, no motor. 1971 GMC 3/4 ton 2wd suburban parts truck.(gutted) 1970 GMC 1/2 ton 4wd suburban t.350/np205 no motor parts truck.

05-18-2011, 10:09 AM	#6
sdailey The Few, The Proud Join Date: Jun 2007 Location: Ball Ground, Georgia Posts: 1,830	Re: Bottom / Lower Radiator Hose for 4x4 Look at a Gates #20842. I'm running one on my K10 with the engine mounted in the rear position. __________________ Shannon

02-25-2014, 12:36 PM	#10
junglejim Registered User Join Date: Jun 2013 Location: Rupert,Idaho Posts: 12	Re: Bottom / Lower Radiator Hose for 4x4 ok I have tried several different lower radiator hoses and each time disappointed. I was reading on here yesterday and a member had a pn#d71244 made by dayco curved radiator hose. member states that the end that goes to the water pump is a little small and the end to the radiator is just right. member states that with a little effort and several cusswords he got it on. member states that the best thing it is the exact bends you need to clear the frame. I called our orilley's store and sure enough they had one and after work went to pick it up. after looking at the hose I said there is no way that will fit on the water pump. almost didn't take it home to try and the employee at the store told me to try it and could return if it didn't work. I am still amazed that it went on. I soaked it several times in hot water for about 5 minutes and would put my fingers in the hole and stretch it out and used joy dish soap on the neck of the water pump. I started it on the back and rotated it left and right till the back was on and then held it in place while using a small pick screw drivers with an 45 degree bend on it I pulled the front on and rotated it back and forth until bingo it was on. guys this hose is frisking awesome. it looks like it was made for this application. and yes the member was right after several cuss words I had it on. I have at least 3 inches of clearance on the frame with no weird pressure on the hose. I am so glad I tried this hose that problem is solved



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