Elring 706.120 Cylinder Head Bolt Set – Honda D-Series 1.3–1.7 (10 pcs, 10x140 mm)

Elring 706.120 Cylinder Head Bolt Set – Honda D-Series 1.3–1.7 (10x140 mm, 10 pcs)

The Elring 706.120 cylinder head bolt set is a complete kit of 10 new head bolts for many Honda D-series petrol engines from 1.3 to 1.7 litres. These are modern torque-to-yield (stretch) bolts, designed to provide a stable and even clamping force on the head gasket – essential after any head gasket replacement, head skim or major engine rebuild. Using a fresh set of head bolts significantly reduces the risk of head gasket failure, coolant loss and loss of compression in your D-series engine.

Application – Honda D-Series engines

The Elring 706.120 head bolt set fits the following Honda engines:

D13: D13B1, D13B2
D14: D14A1, D14A2, D14A5, D14Z5, D14Z6
D15: D15B2, D15B7, D15Z3
D16: D16A6, D16A7, D16Z2, D16Y2, D16Y6, D16Z6, D16Z7, D16Z9, D16Y3, D16V1
D17: D17A2

These engines were used mainly in various generations of Honda Civic and other compact Honda models based on D-series engines (EU / JDM / US markets – depending on engine code). If you are not sure whether these bolts fit your engine, it is best to verify by engine code or OEM reference number.

OEM reference numbers and dimensions

Elring part number: 706.120
OEM reference numbers: 90005-PM3-004, 90005-PM3-004 (superseding equivalent)
Quantity in set: 10 pieces (full engine set)
Dimensions: M10 x 140 mm

One set of Elring 706.120 contains exactly the number of bolts required for one engine, so adding a single kit to the cart is enough for a complete cylinder head installation.

Why new head bolts are recommended

Honda D-series engines use torque-to-yield head bolts. During installation these bolts are tightened first to a specified torque and then by angle, which deliberately stretches the material. This ensures an even clamping load, but also means:

• the bolts should not be reused after they have been tightened once,
• reusing old bolts may lead to insufficient or uneven clamping force,
• this can cause head gasket leaks, coolant entering the combustion chamber or oil passages, and loss of compression.

When you are already investing in a new head gasket, machining and labour, fitting a fresh set of Elring 706.120 bolts is a simple and relatively inexpensive way to protect the entire repair.

When to replace the head bolts?

• Whenever the cylinder head has been removed (e.g. head gasket replacement, cracked head, valve work),
• after engine overheating with suspected head gasket damage,
• when there are signs of combustion gases in the cooling system (overpressure in the expansion tank, bubbles, unexplained coolant loss),
• if the old bolts show corrosion, damaged threads or evidence of previous over-tightening.

FAQ – Elring 706.120 head bolt set for Honda D-series

1. Can I reuse my old D-series head bolts?
It is not recommended. These are stretch bolts, designed for one tightening cycle only. Reusing them can result in uneven or insufficient clamping force and may quickly damage even a new head gasket.

2. Does this set fit all D-series engines?
The kit covers a wide range of D-series codes (D13, D14, D15, D16, D17 – see full list above). For safety, always verify by engine code or OEM number 90005-PM3-004 before ordering.

3. Do I need a specific tightening procedure?
Yes. The bolts must be tightened exactly according to the Honda service procedure for your engine – usually in several stages (torque plus angle) and in the correct tightening sequence. Always use the data from a workshop manual or trusted technical source.

4. Is one set enough for one engine?
Yes. Each Elring 706.120 kit contains 10 bolts, which is the full number required for a complete cylinder head installation on these D-series engines.