You won't fry anything. They both have the same pins with the same functions. I have seen pairs of both types used in that relay box. The 53 is an improved version but not much different. It has a small resistor inside across the coil to suppress electronic noise the relay makes. Mark
Clint Kolda wrote: > I went to the local VW dealer and picked up a pair of fuel pump relays. The parts they gave me are labeled #53 and the part number is 141 951 253B. When I got home I opened the black box above the coil and I see a pair of #24 part number 171 937 503. Am I looking at the correct relays? Is the #53 a newer replacement for them? They appear to both be 40 amp relays, but I don't want to fry something by swapping them. > > Thanks, > Clint > |
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