CP4518 - Seal in Bore ('Standard' High Temperature Seals)

SKU:CP4518-AA

€39.39 €48.45

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Seal in Bore!
'Standard' High Temperature Seal
Kit determined by Caliper Bore Diameter

Quantity

Out of stock, contact for leadtime

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CP4518 - Seal in Bore ('Standard' High Temperature Seals)

Brake calipers are a safety critical item and AP Racing recommend that calipers are reconditioned and piston seals inspected regularly to maintain optimum performance. Where calipers have been subjected to high temperatures or have been used in adverse conditions e.g. Off Road / Rallying, the calipers should be reconditioned and seals replaced more frequently to ensure that safety and performance levels are maintained. When cleaning calipers use warm soapy water or an alcohol based cleaning fluid e.g. Methylated Spirits.

DO NOT USE PETROL, GASOLINE OR MINERAL OIL CLEANER / LUBRICATE as this will damage the seals. Replacement seal kits are available for all AP Racing brake calipers. Depending on the seal type being replaced the following recommended procedures should be followed.

Fitting Instructions:

Soak new seals in brake fluid for minimum of 30 minutes.
Clean brake caliper with warm soapy water and dry off.
With the pads removed insert a brake disc or block into the centre of the caliper. Using either hydraulic pressure or compressed air carefully extend all pistons against the disc or block. Remove block and remove pistons. Keep all body parts away from escaping air and caliper pistons.
Carefully remove old seals with a narrow blunt edged tool.
Ensure that caliper bores, seal grooves and pistons are clean and free from debris and moisture. Use only Alcohol based cleaning fluid, not Mineral oil.
Carefully fit replacement seal into groove in caliper body ensuring that it seats correctly in the groove. Check seals are free from damage and correctly seated in groove not twisted or kinked.
Carefully engage piston into caliper bore and using a suitable rigid flat bar to apply even pressure, push pistons fully into body.

N.B. Excessive force should not be necessary. If piston does not slide smoothly into bore remove & check seal has been fitted correctly.

Part Numbering

Two letters after Kit indicates 4 seals - e.g. CP4518-JJ

Bore Identication Letters:

Bore Identification Letter	Bore Diameter (mm)	Bore Diameter (inch)
A	25.4mm	1.00"
B	26.0mm
C	27.0mm	1.06"
D	28.6mm	1.125"
E	31.8mm	1.25"
F	34.0mm
G	34.9mm	1.375"
H	36.0mm
J	38.1mm	1.50"
K	41.3mm	1.625"
L	44.5mm	1.75"
M	47.6mm	1.875
N	50.8mm	2.00"

Part Numbers:

Caliper Bore	Individual Seal Part Numbers	Seal Kits
	2 Piston Calipers
25.4mm	CP4900-172	CP4518-A
31.8mm	CP4900-168	CP4518-E
36.0mm	CP4900-165	CP4518-H
38.1mm	CP4900-164	CP4518-J
41.3mm	CP4900-163	CP4518-K
44.5mm	CP4900-162	CP4518-L
50.8mm	CP4900-160	CP4518-N
	4 Piston Calipers
25.4mm	CP4900-172	CP4518-AA
25.4mm & 28.6mm	CP4900-172 & CP4900-169	CP4518-AD
25.4mm & 31.8mm	CP4900-172 & CP4900-168	CP4518-AE
27.0mm & 28.6mm	CP4900-170 & CP4900-169	CP4518-CD
27.0mm & 31.8mm	CP4900-170 & CP4900-168	CP4518-CE
27.0mm & 34.0mm	CP4900-170 & CP4900-167	CP4518-CF
27.0mm & 34.9mm	CP4900-170 & CP4900-166	CP4518-CG
28.6mm	CP4900-169	CP4518-DD
28.6mm & 31.8mm	CP4900-169 & CP4900-168	CP4518-DE
28.6mm & 34.9mm	CP4900-169 & CP4900-166	CP4518-DG
28.6mm & 36.0mm	CP4900-169 & CP4900-165	CP4518-DH
31.8mm	CP4900-168	CP4518-EE
31.8mm & 34.9mm	CP4900-168 & CP4900-166	CP4518-EG
31.8mm & 36.0mm	CP4900-168 & CP4900-165	CP4518-EH
34.0mm & 41.3mm	& CP4900-163	CP4518-FK
34.9mm	CP4900-166	CP4518-GG
34.9mm & 41.3mm	CP4900-166 & CP4900-163	CP4518-GK
36.0mm	CP4900-165	CP4518-HH
36.0mm & 38.1mm	CP4900-165 & CP4900-164	CP4518-HJ
36.0mm & 44.5mm	CP4900-165 & CP4900-162	CP4518-HL
38.1mm	CP4900-164	CP4518-JJ
38.1mm & 41.3mm	CP4900-164 & CP4900-163	CP4518-JK
38.1mm & 44.5mm	CP4900-164 & CP4900-162	CP4518-JL
41.3mm	CP4900-163	CP4518-KK
41.3mm & 44.5mm	CP4900-163 & CP4900-162	CP4518-KL
44.5mm	CP4900-162	CP4518-LL
44.5mm & 47.6mm	CP4900-162 & CP4900-161	CP4518-LM
	6 Piston Calipers
25.4mm	CP4900-172	CP4518-AAA
25.4mm & 27.0mm & 28.6mm	CP4900-172 & CP4900-170 & CP4900-169	CP4518-ACD
25.4mm & 27.0mm & 31.8mm	CP4900-172 & CP4900-170 & CP4900-168	CP4518-ACE
25.4mm & 28.6mm & 28.6mm	CP4900-172 & CP4900-169 & CP4900-169	CP4518-ADD
26.0mm & 27.0mm & 31.8mm	CP4900-171 & CP4900-170 & CP4900-168	CP4518-BCE
26.0mm & 31.8mm & 34.9mm	CP4900-171 & CP4900-168 & CP4900-166	CP4518-BEG
26.0mm & 31.8mm & 36.0mm	CP4900-171 & CP4900-168 & CP4900-165	CP4518-BEH
27.0mm & 31.8mm & 38.1mm	CP4900-170 & CP4900-168 & CP4600-164	CP4518-CEJ
28.6mm & 31.8mm & 41.3mm	CP4900-169 & CP4900-168 & CP4900-163	CP4518-DEK
31.8mm	CP4900-168	CP4518-EEE
31.8mm & 34.0mm & 41.3mm	CP4900-168 & CP4900-167 & CP4900-163	CP4518-EFK
31.8mm & 34.9mm & 44.5mm	CP7900-168 & CP4900-166 & CP4900-162	CP4518-EGL
	8 Piston Calipers
25.4mm & 31.8mm	CP4900-172 & CP4900-168	CP4518-AEAE

Options	SKU	Barcode
Brand	AP Racing
Single Seal / Ø25.4mm	CP4900-172
Single Seal / Ø31.8mm	CP4900-168
Single Seal / Ø36.0mm	CP4900-165
Single Seal / Ø38.1mm	CP4900-164
Single Seal / Ø41.3mm	CP4900-163
Single Seal / Ø44.5mm	CP4900-162
Single Seal / Ø50.8mm	CP4900-160
2 / Ø25.4mm	CP4518-A
2 / Ø31.8mm	CP4518-E
2 / Ø36.0mm	CP4518-H
2 / Ø38.1mm	CP4518-J
2 / Ø41.3mm	CP4518-K
2 / Ø44.5mm	CP4518-L
2 / Ø50.8mm	CP4518-N
4 / Ø25.4mm	CP4518-AA
4 / Ø31.8mm	CP4518-EE
4 / Ø36.0mm	CP4518-HH
4 / Ø38.1mm	CP4518-JJ
4 / Ø41.3mm	CP4518-KK
4 / Ø44.5mm	CP4518-LL
4 / Ø25.4mm \| Ø28.6mm	CP4518-AD
4 / Ø25.4mm \| Ø31.8mm	CP4518-AE
4 / Ø27.0mm \| Ø28.6mm	CP4518-CD
4 / Ø27.0mm \| Ø31.8mm	CP4518-CE
4 / Ø27.0mm \| Ø34.0mm	CP4518-CF
4 / Ø28.6mm \| Ø31.8mm	CP4518-DE
4 / Ø28.6mm \| Ø34.9mm	CP4518-DG
4 / Ø28.6mm \| Ø36.0mm	CP4518-DH
4 / Ø31.8mm \| Ø34.9mm	CP4518-EG
4 / Ø31.8mm \| Ø36.0mm	CP4518-EH
4 / Ø34.0mm \| Ø41.3mm	CP4518-FK
4 / Ø34.9mm \| Ø41.3mm	CP4518-GK
4 / Ø36.0mm \| Ø44.5mm	CP4518-HL
4 / Ø38.1mm \| Ø41.3mm	CP4518-JK
4 / Ø38.1mm \| Ø44.5mm	CP4518-JL
4 / Ø41.3mm \| Ø44.5mm	CP4518-KL
4 / Ø44.5mm \| Ø47.6mm	CP4518-LM
6 / Ø31.8mm	CP4518-EEE
6 / Ø25.4mm \| Ø27.0mm \| Ø28.6mm	CP4518-ACD
6 / Ø25.4mm \| Ø28.6mm \| Ø28.6mm	CP4518-ADD
6 / Ø26.0mm \| Ø27.0mm \| Ø31.8mm	CP4518-BCE
6 / Ø26.0mm \| Ø31.8mm \| Ø34.9mm	CP4518-BEG
6 / Ø26.0mm \| Ø31.8mm \| Ø36.0mm	CP4518-BEH
6 / Ø27.0mm \| Ø31.8mm \| Ø38.1mm	CP4518-CEJ
6 / Ø28.6mm \| Ø31.8mm \| Ø41.3mm	CP4518-DEK
6 / Ø31.8mm \| Ø34.0mm \| Ø41.3mm	CP4518-EFK
6 / Ø31.8mm \| Ø34.9mm \| Ø44.5mm	CP4518-EGL
8 / Ø25.4mm \| Ø31.8mm \| Ø25.4mm \| Ø31.8mm	CP4518-AEAE