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Parts for MerCruiser Race Engine and Drive 525 EFI Intake Manifold & Components

Engine Diagram

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#1 840930A04 MANIFOLD ASSEMBLY, Intake - Blue (1 required per assembly)
M FOLD ASSY-BLUE  O  
840930A04 M FOLD ASSY-BLUE O
(more info)
    UnavailableUnavailable Parts
#2 841119 TUBE, Coolant Restrictor (1 required per assembly)
TUBE 841119 841119
841119OEM Part 841119 - Tube (more info) About Mercury Marine $15.22 $15.22 Add to shopping cart
Available to order:
Usually ships
within 8 days
#3 17494A02 COVER KIT, Coolant Tube - Blue (1 required per assembly)
COVER KIT Coolant 17494A02  
17494A02OEM Part 17494A02 - Cover Kit (Blue) (more info) About Mercury Marine $25.39 $25.39 Add to shopping cart
Available to order:
Usually ships
within 8 days
#4 27-33179 2 GASKET (1 required per assembly)
GASKET Note: must be ordered in multiples of 2 27-33179  2 27-33179 2
27-33179 2OEM Part 27-33179 2 - Gasket - Priced Individually (more info) About Mercury Marine $1.90 $1.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
GASKET   27 33179Q02 27-33179Q02
27-33179Q02OEM Part 27-33179Q02 - Gasket (more info) About Mercury Marine $3.90 $3.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
#5 12-856774 WASHER, (.406 x .750 x .105) Stainless Steel (2 required per assembly)
WASHER (.406 x .7 12-856774  
12-856774OEM Part 12-856774 - Washer (more info) About Mercury Marine $1.50 $1.50 Add to shopping cart
1 in stock. Explain stock levels
#6 10-805559 SCREW, (.375-16 x .875) Stainless Steel (2 required per assembly)
SCREW (.375-16 x 10-805559 10-805559
10-805559OEM Part 10-805559 - Screw (more info) About Mercury Marine $7.20 $7.20 Add to shopping cart
1 in stock. Explain stock levels
#7 25-805732 O-RING, (2.612 x .103) (8 required per assembly)
O-RING (2.612 x . 25-805732  
25-805732OEM Part 25-805732 - O-Ring (more info) About Mercury Marine $17.10 $14.65 Add to shopping cart
Available to order:
Usually ships
within 8 days
#8 840983T01 BRACKET, Lift - Starboard (1 required per assembly)
BRACKET 840983T01  
840983T01OEM Part 840983T01 - Bracket (more info) About Mercury Marine $77.22 $77.22 Add to shopping cart
Available to order:
Usually ships
within 8 days
#9 54-849998 1 LIFTING EYE, Black, Port (1 required per assembly)
LIFTING EYE Black 54-849998  1  
54-849998 1OEM Part 54-849998 1 - Lifting Eye (more info) About Mercury Marine $84.85 $84.85 Add to shopping cart
Available to order:
Usually ships
within 8 days
#11 10-822168 SCREW, (.375-16 x 1.750) Stainless Steel (7 required per assembly)
SCREW (.375-16 x 10-822168 10-822168
10-822168OEM Part 10-822168 - Screw (more info) About Mercury Marine $2.99 $2.99 Add to shopping cart
Available to order:
Usually ships
within 8 days
#11 10-47432 SCREW, (.375-16 x 2.00) (3 required per assembly)
SCREW             O - Replaced by 10-842787  
10-47432This part has been superseded. SCREW O - Replaced by 10-842787
(more info)
    UnavailableUnavailable Parts
SCREW (.375-16 x 10-842787 10-842787
10-842787OEM Part 10-842787 - Screw (more info) About Mercury Marine $5.54 $5.54 Add to shopping cart
Available to order:
Usually ships
within 8 days
#11 10-847919 SCREW, (.375-16 x 2.250) (2 required per assembly)
SCREW (.375-16 x 10-847919 10-847919
10-847919OEM Part 10-847919 - Screw (more info) About Mercury Marine $4.56 $4.56 Add to shopping cart
Available to order:
Usually ships
within 8 days
#11 10-849994 SCREW, (.375-16 x 5.250) (4 required per assembly)
SCREW (.375-16 x 10-849994 10-849994
10-849994OEM Part 10-849994 - Screw (more info) About Mercury Marine $21.15 $21.15 Add to shopping cart
Available to order:
Usually ships
within 8 days
#12 840982A 1 SENSOR ASSEMBLY, Oil Drive/Camshaft (1 required per assembly)
SENSOR ASSY       O - Replaced by -840982T01  
840982A 1This part has been superseded. SENSOR ASSY O - Replaced by -840982T01
(more info)
    UnavailableUnavailable Parts
ORD 8M0085070     O NLA  
840982T01 ORD 8M0085070 O NLA
(more info)
    UnavailableUnavailable Parts
SENSOR-CAM 8M0085070  
8M0085070OEM Part 8M0085070 - Cam Sensor (more info) About Mercury Marine $921.43 $921.43 Add to shopping cart
Available to order:
Usually ships
within 8 days
#13 27-34486 3 GASKET (1 required per assembly)
GASKET 27-34486  3 27-34486  3
27-34486 3OEM Part 27-34486 3 - Gasket (more info) About Mercury Marine $1.80 $1.80 Add to shopping cart
Available to order:
Usually ships
within 8 days
Gasket 18-0874-9
18-0874-9OEM Match 18-0874-9 - Gasket 27-344863 2-Pack (more info)
Replaces OEM #0312780
About Sierra Marine $2.98 $2.23 Add to shopping cart
Available to order:
Usually ships
within 8 days
#16 52185 CLAMP (1 required per assembly)
CLAMP 52185 52185
52185OEM Part 52185 - Clamp (more info) About Mercury Marine $13.90 $13.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
#- 27-843073A03 GASKET/SEAL SET, Engine Overhaul (1 required per assembly) - NOTE: See Gasket/Seal Set - Engine Overhaul Section For Complete Parts Listing
GASKET/SEAL SET   O - Replaced by 27-843073A06  
27-843073A03This part has been superseded. GASKET/SEAL SET O - Replaced by 27-843073A06
(more info)
    UnavailableUnavailable Parts
GASKET/SEAL SET E 27-843073A06 27-843073A06
27-843073A06OEM Part 27-843073A06 - Gasket/Seal Set (more info) About Mercury Marine $928.01 $928.01 Add to shopping cart
Available to order:
Usually ships
within 8 days
#- 841178A 1 PARTIAL ENGINE ASSEMBLY (1 required per assembly)
PARTIAL ENGINE AS 841178A 1  
841178A 1OEM Part 841178A 1 - Partial - 525 Efi (more info) About Mercury Marine $16,767.20 $16,767.20 Add to shopping cart
Available to order:
Usually ships
within 8 days