2007 XK Cooling System Service
Veteran Member
Joined: Jan 2010
Posts: 2,941
Likes: 1,511
From: New Zealand
Another one for the list - AJ812140 which is the throttle body to heater inlet hose that runs from the front to the back of the engine and sits in the engine valley.
I have just bought one for my car because my supercharger is about to be removed to have the torsion coupler replaced The hose was only £2.99 plus shipping on EBAY so it made to change it as the 'valley' hose seems to be a common fault on earlier models.
I have just bought one for my car because my supercharger is about to be removed to have the torsion coupler replaced The hose was only £2.99 plus shipping on EBAY so it made to change it as the 'valley' hose seems to be a common fault on earlier models.
Senior Member
Joined: Feb 2018
Posts: 422
Likes: 232
From: Tampa, Florida
Another one for the list - AJ812140 which is the throttle body to heater inlet hose that runs from the front to the back of the engine and sits in the engine valley.
I have just bought one for my car because my supercharger is about to be removed to have the torsion coupler replaced The hose was only £2.99 plus shipping on EBAY so it made to change it as the 'valley' hose seems to be a common fault on earlier models.
I have just bought one for my car because my supercharger is about to be removed to have the torsion coupler replaced The hose was only £2.99 plus shipping on EBAY so it made to change it as the 'valley' hose seems to be a common fault on earlier models.
Happy Sunday,
Dave
Veteran Member
Joined: Jan 2010
Posts: 2,941
Likes: 1,511
From: New Zealand
You may not have found it because it is listed on the throttle body page. The picture is wrong on there as well.
Junior Member
Joined: Jan 2022
Posts: 5
Likes: 0
Not so sure you need to replace every single rubber hose. Just replace those which are often noted on this forum.
Hoses/seals leak/fail under pressure. Many pre-war cars had cooling systems that operated with no pressure cap. Boiling point was 212F (sea level). Presurizing the system allows a higher boiling point, but also stresses all rubber hoses. Classic car collectors have often added pressure radiator caps; and found early hose failure.
Hoses today are much more robust.
Consider going to a system with zero pressure. Check out Evans Coolant. It has a much higher boil point than conventional coolants; and operates with no pressure. I have had it for years on my '07 XK with no troubles, leaks, etc.
Hoses/seals leak/fail under pressure. Many pre-war cars had cooling systems that operated with no pressure cap. Boiling point was 212F (sea level). Presurizing the system allows a higher boiling point, but also stresses all rubber hoses. Classic car collectors have often added pressure radiator caps; and found early hose failure.
Hoses today are much more robust.
Consider going to a system with zero pressure. Check out Evans Coolant. It has a much higher boil point than conventional coolants; and operates with no pressure. I have had it for years on my '07 XK with no troubles, leaks, etc.
Veteran Member
Joined: Apr 2013
Posts: 11,890
Likes: 6,401
From: Kaysville, Utah, US
I love Evans.
I'm going to put it into my XKR in the spring as I have to replace some coolant lines anyway. This wouldn't have happened if it'd had Evans earlier, as nearly zero system pressure.
