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Parts for MerCruiser Race Engine and Drive 525 EFI Senders & Sensors

Engine Diagram

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#1 854445 SENSOR, MAP, Manifold Absolute Pressure (1 required per assembly) - NOTE: Also See Intake Plenum And Components Section
SENSOR Map VOLVO PART# 854445 854445
854445OEM Part 854445 - Sensor (map) (more info) About Mercury Marine $91.25 $91.25 Add to shopping cart
3 in stock. Explain stock levels
Map Sensor 18-7668
18-7668OEM Match 18-7668 - Sensor, 854445 (more info) About Sierra Marine $74.32 $74.32 Add to shopping cart
1 in stock. Explain stock levels
#2 805218T SENSOR, Coolant Temperature (1 required per assembly) - NOTE: Also See Cylinder Block And Camshaft Section
SENSOR ASSY-TEMP 805218T 805218T
805218TOEM Part 805218T - Temperature Sensor Assembly (more info) About Mercury Marine $32.83 $32.83 Add to shopping cart
Available to order:
Usually ships
within 8 days
Coolant Temp Sensor 18-7600
18-7600OEM Match 18-7600 - Sensor 805218T (more info) About Sierra Marine $29.99 $24.52 Add to shopping cart
5 in stock. Explain stock levels
#3 805223T SENSOR, Intake Air Temperature (1 required per assembly) - NOTE: Also See Intake Plenum And Components Section
SENSOR ASSY (IAT) 805223T 805223T
805223TOEM Part 805223T - Sensor Assembly (iat) (more info) About Mercury Marine $81.75 $81.75 Add to shopping cart
Available to order:
Usually ships
within 8 days
Air Charge Temp Sender 18-7702
18-7702OEM Match 18-7702 - Sender, 805223T, 3854527 (more info) About Sierra Marine $44.99 $37.13 Add to shopping cart
1 in stock. Explain stock levels
#4 881879011 SENSOR, Pressure (0 - 100 PSI), Oil Pressure (1 required per assembly) - NOTE: Also See Cylinder Block And Camshaft Section
SENSOR-PRESSURE   O - Replaced by -881879T11 881879011
881879011This part has been superseded. SENSOR-PRESSURE O - Replaced by -881879T11
(more info)
    UnavailableUnavailable Parts
SENSOR Pressure ( 881879T11 881879T11
881879T11OEM Part 881879T11 - Pressure Sensor (more info) About Mercury Marine $136.58 $136.58 Add to shopping cart
Available to order:
Usually ships
within 8 days
#5 22-64013 FITTING, (.375 Male To .125 Female) (1 required per assembly) - NOTE: Used With Oil Pressure Sensor - Also See Cylinder Block And Camshaft Section
FITTING (.375 Mal 22-64013  
22-64013OEM Part 22-64013 - Reducer (more info) About Mercury Marine $7.90 $7.90 Add to shopping cart
6 in stock. Explain stock levels
#6 878187 SENSOR ASSEMBLY, Knock (2 required per assembly) - NOTE: Also See Cylinder Block And Camshaft Section
SENSOR-KNOCK      O - Replaced by -8M6003194 878187
878187This part has been superseded. SENSOR-KNOCK O - Replaced by -8M6003194
(more info)
    UnavailableUnavailable Parts
SENSOR-KNOCK      O  
8M6003194 SENSOR-KNOCK O
(more info)
    UnavailableUnavailable Parts
KNOCK SENSOR 18-7554
18-7554OEM Match 18-7554 - Knock Sensor 878187 (more info) About Sierra Marine $88.16 $73.61 Add to shopping cart
3 in stock. Explain stock levels
#7 11-826292 NUT, (M10) Brass/Nickel Plated, Knock Sensor Mounting (2 required per assembly)
NUT (M10) Brass/N 11-826292  
11-826292OEM Part 11-826292 - Nut (more info) About Mercury Marine $2.90 $2.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
#8 16-862915 STUD, (.250-18/M10 Special), Knock Sensor Mounting (2 required per assembly)
STUD (.250-18/M10 16-862915  
16-862915OEM Part 16-862915 - Stud (more info) About Mercury Marine $19.58 $19.58 Add to shopping cart
Available to order:
Usually ships
within 8 days
#9 828358 2 SENSOR, Crankshaft Position (1 required per assembly) - NOTE: Also See Circulating Water Pump And Front Cover Section
8M0030022 828358  2  
828358 2OEM Part 828358 2 - Sensor Assembly (more info) About Mercury Marine $72.53 $72.53 Add to shopping cart
3 in stock. Explain stock levels
SENSOR ASSY       O - Replaced by -8M0082988  
8M0030022This part has been superseded. SENSOR ASSY O - Replaced by -8M0082988
(more info)
    UnavailableUnavailable Parts
SENSOR Crankshaft 8M0082988 8M0082988
8M0082988OEM Part 8M0082988 - Sensor Assembly (more info) About Mercury Marine $78.25 $78.25 Add to shopping cart
Available to order:
Usually ships
within 8 days
#10 10-40105 16 SCREW, (M5 x 16) Stainless Steel (2 required per assembly)
SCREW (M5 x 16) S 10-40105 16 10-40105 16
10-40105 16OEM Part 10-40105 16 - Screw (more info) About Mercury Marine $1.40 $1.40 Add to shopping cart
Available to order:
Usually ships
within 8 days
#11 885342001 SENSOR ASSEMBLY, Water Temperature (1 required per assembly) - NOTE: Also See Closed Cooling System Section
SENSOR ASSY-TEMP  O - Replaced by -885342002 885342001
885342001This part has been superseded. SENSOR ASSY-TEMP O - Replaced by -885342002
(more info)
    UnavailableUnavailable Parts
SENSOR ASSEMBLY 885342002 885342002
885342002OEM Part 885342002 - Temperature Sensor Assembly (more info) About Mercury Marine $31.58 $31.58 Add to shopping cart
Available to order:
Usually ships
within 8 days
#12 25-888814 O-RING, (.351 x .072) (1 required per assembly)
O-RING            O - Replaced by 25-896699  
25-888814This part has been superseded. O-RING O - Replaced by 25-896699
(more info)
    UnavailableUnavailable Parts
O-RING (1.78 mm x 25-896699  
25-896699OEM Part 25-896699 - O-Ring (more info) About Mercury Marine $7.70 $7.70 Add to shopping cart
Available to order:
Usually ships
within 8 days
#13 816492A 6 ALARM KIT, Audio Warning (1 required per assembly) - NOTE: Remote Mounted Near Helm
ALARM KIT 816492A 6 816492A 6
816492A 6OEM Part 816492A 6 - Alarm Kit (more info) About Mercury Marine $82.50 $82.50 Add to shopping cart
1 in stock. Explain stock levels
#14 849903 SENSOR, Throttle Position (1 required per assembly) - NOTE: Also See Intake Plenum And Components Section
SENSOR Throttle P 849903 849903
849903OEM Part 849903 - Sensor -tps (more info) About Mercury Marine $170.97 $170.97 Add to shopping cart
Available to order:
Usually ships
within 8 days
#15 10-805400 SCREW, (#8-32 x .500) Stainless Steel (2 required per assembly)
SCREW (#8-32 x .5 10-805400 10-805400
10-805400OEM Part 10-805400 - Screw (more info) About Mercury Marine $1.20 $1.20 Add to shopping cart
Available to order:
Usually ships
within 8 days
#16 840982A 1 SENSOR ASSEMBLY, Oil Drive/Camshaft (1 required per assembly) - NOTE: Also See Intake Manifold And Components Section
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
#17 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