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1995-2002 Range Rover P38A
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Discussion Starter #1
I am buying a replacement airbox, I don't have the original airbox. The vendor seems to think that they are different 4.0 vs 4.6. Are MAFs different on 4.0 vs 4.6? What's the most reliable way to identify the engine? I am thinking transmission data plate (4hp22 for 4.0, 4hp24 for 4.6)?
 

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Super Moderator
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Engine identification is easy, look at the engine number stamped into the block next to the hole where the dipstick tube goes in. A number starting 42D, 58D or 95D is a 4.0 litre, 46D, 60D and 96D is a 4.6. Airbox and MAF on a Thor engine are the same whether 4.0 litre or 4.6.
 

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Registered
1995-2002 Range Rover P38A
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139 Posts
Discussion Starter #3
Engine identification is easy, look at the engine number stamped into the block next to the hole where the dipstick tube goes in. A number starting 42D, 58D or 95D is a 4.0 litre, 46D, 60D and 96D is a 4.6. Airbox and MAF on a Thor engine are the same whether 4.0 litre or 4.6.
Thank you, Richard! I appreciate your help.
 

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Premium Member
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1,345 Posts
Indeed, all Bosch engines have the same airbox and MAF, doesn't matter if it's a 4.0 or 4.6.
Gems had 2 different types, depending on model year, not engine size. I think the later one is compatible with Bosch, despite a different part number.

Filip
 
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