How to replace the coolant pipe (LY7) on 2007 Cadillac STS?

The first step to replace the Coolant Pipe (LY7) requires vehicle elevation and support. The first step should involve removing the Coolant Pipe to generator bracket bolt before lowering the raised vehicle. Start by draining the cooling system then disconnect the outlet hose from the pipe leading to the radiator. Extract the wiring harnesses from the inlet Coolant Pipe followed by removal of the Coolant Pipe-to-thermostat bolt and the Coolant Pipe-to-cylinder head bolt before extracting the entire Coolant Pipe. First install the Coolant Pipe before you begin loosely attaching the Coolant Pipe bolts. After installing the Coolant Pipe to thermostat bolt with a torque of 23 n.m (17 lb ft) begin tightening the Coolant Pipe to cylinder head bolt to 50 n.m (37 lb ft). Lift and secure the vehicle once more but first place the Coolant Pipe onto the generator bracket and torque the bolt to 23 n.m (17 lb ft). After connecting the radiator's outlet hose to the Coolant Pipe you should install the wiring harnesses on the coolant inlet pipe and finish the process by filling your cooling system.

OEM 2007 Cadillac STS Coolant Pipe

Engine Cooler Pipe

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12 Coolant Pipes found

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2007 Cadillac STS By-Pass Hose Part Number: 12566109
$27.73 MSRP: $41.27
You Save: $13.54 (33%)
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Product Specifications
- Other Name: Hose, Engine Coolant By-Pass; Hose, Engine Coolant By - Pass
- Item Weight: 0.50 Pounds
- Item Dimensions: 5.1 x 5.1 x 2.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12566109
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2007 Cadillac STS Submodels:
- Base, Platinum | 8 Cyl 4.6 L GAS
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2007 Cadillac STS Inlet Hose Part Number: 88956903
Product Specifications
- Other Name: Hose Assembly, Radiator Surge Tank Inlet; Radiator Hose; Hose, Engine Coolant Recovery
- Item Weight: 2.10 Pounds
- Item Dimensions: 13.8 x 13.9 x 3.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 88956903
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2007 Cadillac STS Submodels:
- Base | 8 Cyl 4.6 L GAS
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2007 Cadillac STS Inlet Hose Part Number: 19129775
Product Specifications
- Other Name: Hose, Radiator Surge Tank Inlet; Radiator Hose; Hose, Engine Coolant Recovery
- Item Weight: 2.00 Pounds
- Item Dimensions: 14.7 x 14.6 x 4.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 19129775
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2007 Cadillac STS Submodels:
- V | 8 Cyl 4.4 L GAS
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2007 Cadillac STS Inlet Hose Part Number: 88958088
Product Specifications
- Other Name: Hose Assembly, Radiator Surge Tank Inlet; Radiator Hose; Hose, Engine Coolant Recovery
- Item Weight: 6.40 Pounds
- Item Dimensions: 20.6 x 14.8 x 6.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 88958088
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- Base | 6 Cyl 3.6 L GAS
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2007 Cadillac STS Upper Hose Part Number: 89023434
Product Specifications
- Other Name: Hose, Radiator Inlet; Multi Purpose Hose; Radiator Hose; Cooling Hose; Hose, Radiator Inlet (Upper)
- Position: Upper
- Replaces: 25974695
- Item Weight: 1.30 Pounds
- Item Dimensions: 14.4 x 10.8 x 7.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 89023434
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- Base, Platinum | 8 Cyl 4.6 L GAS
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2007 Cadillac STS Inlet Tube Part Number: 19129768
Product Specifications
- Other Name: Pipe Assembly, Engine Oil Cooler Inlet; Pipe, Engine Oil Cooler
- Item Weight: 0.80 Pounds
- Item Dimensions: 7.1 x 6.3 x 21.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 19129768
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- V | 8 Cyl 4.4 L GAS
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2007 Cadillac STS Overflow Hose Part Number: 88956890
$28.62 MSRP: $42.58
You Save: $13.96 (33%)
Product Specifications
- Other Name: Hose, Engine Coolant Recovery; Coolant Reservoir Hose; Multi Purpose Hose; Radiator Hose; Outlet Pipe; Outlet Hose
- Item Weight: 0.40 Pounds
- Item Dimensions: 35.9 x 8.9 x 5.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 88956890
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- Base, Platinum, V | 8 Cyl 4.4 L GAS, 8 Cyl 4.6 L GAS
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2007 Cadillac STS Outlet Hose Part Number: 88958083
Product Specifications
- Other Name: Hose, Engine Coolant By-Pass; Radiator Hose; Water Pump Tube; Hose, Engine Coolant By - Pass
- Item Weight: 0.60 Pounds
- Item Dimensions: 10.7 x 3.9 x 1.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 88958083
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- Base | 8 Cyl 4.6 L GAS
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2007 Cadillac STS Water Outlet Part Number: 88956900
Product Specifications
- Other Name: Hose Assembly, Radiator Surge Tank Engine; Radiator Hose; Outlet Hose; Hose, Engine Coolant Recovery
- Item Weight: 2.20 Pounds
- Item Dimensions: 20.9 x 15.6 x 5.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 88956900
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- Base | 6 Cyl 3.6 L GAS
View related parts
2007 Cadillac STS Overflow Hose Part Number: 25757865
Product Specifications
- Other Name: Hose, Radiator Surge Tank Overflow; Coolant Reservoir Hose; Multi Purpose Hose; Radiator Hose; Hose, Engine Coolant Recovery
- Item Weight: 0.50 Pounds
- Item Dimensions: 7.5 x 6.1 x 5.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 25757865
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- Base, Platinum, V | 6 Cyl 3.6 L GAS, 8 Cyl 4.4 L GAS, 8 Cyl 4.6 L GAS
View related parts
2007 Cadillac STS Upper Hose Part Number: 25974696
Product Specifications
- Other Name: Hose, Radiator Inlet (Upper); Multi Purpose Hose; Radiator Hose; Cooling Hose
- Position: Upper
- Replaces: 88957426, 89023438
- Item Weight: 1.00 Pounds
- Item Dimensions: 14.6 x 5.8 x 4.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 25974696
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- Base, Platinum | 8 Cyl 4.6 L GAS
View related parts
2007 Cadillac STS By-Pass Hose Part Number: 12608315
Product Specifications
- Other Name: Hose, Engine Coolant By-Pass; Hose, Engine Coolant By - Pass
- Replaces: 12582234
- Item Weight: 0.70 Pounds
- Item Dimensions: 8.1 x 3.6 x 0.9 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12608315
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Cadillac STS Submodels:
- V | 8 Cyl 4.4 L GAS

2007 Cadillac STS Coolant Pipe

With a comprehensive array of OEM 2007 Cadillac STS Coolant Pipe, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2007 Cadillac STS Coolant Pipe are backed by the manufacturer's warranty and are offered at competitive prices in the market. Rest assured, you can shop with complete confidence.

2007 Cadillac STS Coolant Pipe Parts and Q&A

Q: How to replace the coolant pipe (LY7) on 2007 Cadillac STS?
A: The first step to replace the Coolant Pipe (LY7) requires vehicle elevation and support. The first step should involve removing the Coolant Pipe to generator bracket bolt before lowering the raised vehicle. Start by draining the cooling system then disconnect the outlet hose from the pipe leading to the radiator. Extract the wiring harnesses from the inlet Coolant Pipe followed by removal of the Coolant Pipe-to-thermostat bolt and the Coolant Pipe-to-cylinder head bolt before extracting the entire Coolant Pipe. First install the Coolant Pipe before you begin loosely attaching the Coolant Pipe bolts. After installing the Coolant Pipe to thermostat bolt with a torque of 23 n.m (17 lb ft) begin tightening the Coolant Pipe to cylinder head bolt to 50 n.m (37 lb ft). Lift and secure the vehicle once more but first place the Coolant Pipe onto the generator bracket and torque the bolt to 23 n.m (17 lb ft). After connecting the radiator's outlet hose to the Coolant Pipe you should install the wiring harnesses on the coolant inlet pipe and finish the process by filling your cooling system.